diff --git a/lib/platform/azure/azure-helper.ts b/lib/platform/azure/azure-helper.ts
index 6fc995dd232a46413dffa96969f824acab126056..a65d38cb614e0a13108dc5c528aa6a54be9328f1 100644
--- a/lib/platform/azure/azure-helper.ts
+++ b/lib/platform/azure/azure-helper.ts
@@ -198,12 +198,14 @@ export function getRenovatePRFormat(azurePr: {
   description: any;
   status: number;
   mergeStatus: number;
+  targetRefName: string;
 }) {
   const pr = azurePr as any;
 
   pr.displayNumber = `Pull Request #${azurePr.pullRequestId}`;
   pr.number = azurePr.pullRequestId;
   pr.body = azurePr.description;
+  pr.targetBranch = azurePr.targetRefName;
 
   // status
   // export declare enum PullRequestStatus {
diff --git a/lib/platform/bitbucket-server/utils.ts b/lib/platform/bitbucket-server/utils.ts
index 61c4847b6a9ce1a83a86c9fdd7ec3f48459a8fc6..5c7a33431fa2c3f3d9b384d4c270ff124345097a 100644
--- a/lib/platform/bitbucket-server/utils.ts
+++ b/lib/platform/bitbucket-server/utils.ts
@@ -15,6 +15,7 @@ export function prInfo(pr: any) {
     number: pr.id,
     body: pr.description,
     branchName: pr.fromRef.displayId,
+    targetBranch: pr.toRef.displayId,
     title: pr.title,
     state: prStateMapping[pr.state],
     createdAt: pr.createdDate,
diff --git a/lib/platform/bitbucket/utils.ts b/lib/platform/bitbucket/utils.ts
index 44ed49d963c1a793474f7824a0f151000d11e6e7..a4814c2d90157ab29cc7cbe1392c600e301d753d 100644
--- a/lib/platform/bitbucket/utils.ts
+++ b/lib/platform/bitbucket/utils.ts
@@ -103,6 +103,7 @@ export function prInfo(pr: any) {
     number: pr.id,
     body: pr.summary ? pr.summary.raw : /* istanbul ignore next */ undefined,
     branchName: pr.source.branch.name,
+    targetBranch: pr.destination.branch.name,
     title: pr.title,
     state: prStates.closed.includes(pr.state)
       ? /* istanbul ignore next */ 'closed'
diff --git a/lib/platform/github/index.ts b/lib/platform/github/index.ts
index ca3c058c0295162331e1734d2112bdf23ccf3977..e07762bf1345ad3922c5916873096f2f83ba7aaf 100644
--- a/lib/platform/github/index.ts
+++ b/lib/platform/github/index.ts
@@ -1230,6 +1230,7 @@ async function getOpenPrs() {
             nodes {
               number
               headRefName
+              baseRefName
               title
               mergeable
               mergeStateStatus
@@ -1289,6 +1290,8 @@ async function getOpenPrs() {
         const branchName = pr.branchName;
         const prNo = pr.number;
         delete pr.headRefName;
+        pr.targetBranch = pr.baseRefName;
+        delete pr.baseRefName;
         // https://developer.github.com/v4/enum/mergeablestate
         const canMergeStates = ['BEHIND', 'CLEAN'];
         const hasNegativeReview =
diff --git a/lib/platform/gitlab/index.ts b/lib/platform/gitlab/index.ts
index 87b79926bdf3910db7e3627818c6ff942470dfdc..db7094b2a753c1fbdc0ea5dc7ddfbb3f361a2e8e 100644
--- a/lib/platform/gitlab/index.ts
+++ b/lib/platform/gitlab/index.ts
@@ -723,6 +723,7 @@ export async function getPr(iid: number) {
   const pr = (await api.get(url)).body;
   // Harmonize fields with GitHub
   pr.branchName = pr.source_branch;
+  pr.targetBranch = pr.target_branch;
   pr.number = pr.iid;
   pr.displayNumber = `Merge Request #${pr.iid}`;
   pr.body = pr.description;
diff --git a/test/platform/azure/__snapshots__/azure-helper.spec.ts.snap b/test/platform/azure/__snapshots__/azure-helper.spec.ts.snap
index 2934db296bf8af0086ba46933e1a25d5d15b48b2..fd8b5ddd8b4fe1d06f3aae2719a4d4b1e12cae7e 100644
--- a/test/platform/azure/__snapshots__/azure-helper.spec.ts.snap
+++ b/test/platform/azure/__snapshots__/azure-helper.spec.ts.snap
@@ -92,6 +92,7 @@ Object {
   "number": undefined,
   "state": "merged",
   "status": 3,
+  "targetBranch": undefined,
 }
 `;
 
@@ -103,6 +104,7 @@ Object {
   "number": undefined,
   "state": "closed",
   "status": 2,
+  "targetBranch": undefined,
 }
 `;
 
@@ -115,6 +117,7 @@ Object {
   "mergeStatus": 2,
   "number": undefined,
   "state": "open",
+  "targetBranch": undefined,
 }
 `;
 
@@ -126,6 +129,7 @@ Object {
   "number": undefined,
   "state": "open",
   "status": 1,
+  "targetBranch": undefined,
 }
 `;
 
diff --git a/test/platform/bitbucket-server/__snapshots__/index.spec.ts.snap b/test/platform/bitbucket-server/__snapshots__/index.spec.ts.snap
index c1cef2e052867c50c43eb6e4eb9c407a52d7b658..ea6651cbfb2e6a2f19f41491c90429b292c23a57 100644
--- a/test/platform/bitbucket-server/__snapshots__/index.spec.ts.snap
+++ b/test/platform/bitbucket-server/__snapshots__/index.spec.ts.snap
@@ -505,6 +505,7 @@ Object {
   "createdAt": 1547853840016,
   "number": 5,
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
   "version": 1,
 }
@@ -556,6 +557,7 @@ Object {
     "userName2",
   ],
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
   "version": 1,
 }
@@ -722,6 +724,7 @@ Object {
     "userName2",
   ],
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
   "version": 1,
 }
@@ -743,6 +746,7 @@ Object {
     "userName2",
   ],
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
   "version": 1,
 }
@@ -764,6 +768,7 @@ Object {
     "userName2",
   ],
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
   "version": 1,
 }
@@ -850,6 +855,7 @@ Object {
     "userName2",
   ],
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
   "version": 1,
 }
@@ -895,6 +901,7 @@ Object {
   "number": undefined,
   "reviewers": Array [],
   "state": "merged",
+  "targetBranch": undefined,
   "title": undefined,
   "version": 0,
 }
@@ -960,6 +967,7 @@ Array [
     "createdAt": 1547853840016,
     "number": 5,
     "state": "open",
+    "targetBranch": "master",
     "title": "title",
     "version": 1,
   },
@@ -1979,6 +1987,7 @@ Object {
   "createdAt": 1547853840016,
   "number": 5,
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
   "version": 1,
 }
@@ -2030,6 +2039,7 @@ Object {
     "userName2",
   ],
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
   "version": 1,
 }
@@ -2196,6 +2206,7 @@ Object {
     "userName2",
   ],
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
   "version": 1,
 }
@@ -2217,6 +2228,7 @@ Object {
     "userName2",
   ],
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
   "version": 1,
 }
@@ -2238,6 +2250,7 @@ Object {
     "userName2",
   ],
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
   "version": 1,
 }
@@ -2324,6 +2337,7 @@ Object {
     "userName2",
   ],
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
   "version": 1,
 }
@@ -2369,6 +2383,7 @@ Object {
   "number": undefined,
   "reviewers": Array [],
   "state": "merged",
+  "targetBranch": undefined,
   "title": undefined,
   "version": 0,
 }
@@ -2434,6 +2449,7 @@ Array [
     "createdAt": 1547853840016,
     "number": 5,
     "state": "open",
+    "targetBranch": "master",
     "title": "title",
     "version": 1,
   },
diff --git a/test/platform/bitbucket-server/index.spec.ts b/test/platform/bitbucket-server/index.spec.ts
index dfd8d36a2bfada89228a130d8a1c46b900eabf83..063944356a0707eab4516514cdc1e1a144fe955a 100644
--- a/test/platform/bitbucket-server/index.spec.ts
+++ b/test/platform/bitbucket-server/index.spec.ts
@@ -533,6 +533,7 @@ describe('platform/bitbucket-server', () => {
               state: 'MERGED',
               reviewers: [],
               fromRef: {},
+              toRef: {},
             },
           } as any);
           expect(await bitbucket.getPr(5)).toMatchSnapshot();
diff --git a/test/platform/bitbucket/__snapshots__/index.spec.ts.snap b/test/platform/bitbucket/__snapshots__/index.spec.ts.snap
index 9adeaf50ad294b55c251bf5ad2e75bc6374c1c4c..8e42c661916783496b7c720011eae4f6f3d76c58 100644
--- a/test/platform/bitbucket/__snapshots__/index.spec.ts.snap
+++ b/test/platform/bitbucket/__snapshots__/index.spec.ts.snap
@@ -134,6 +134,7 @@ Object {
   "createdAt": "2018-07-02T07:02:25.275030+00:00",
   "number": 5,
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
 }
 `;
@@ -150,6 +151,7 @@ Object {
   "isStale": false,
   "number": 5,
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
 }
 `;
@@ -166,6 +168,7 @@ Object {
   "isStale": false,
   "number": 3,
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
 }
 `;
@@ -182,6 +185,7 @@ Object {
   "isStale": false,
   "number": 5,
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
 }
 `;
@@ -198,6 +202,7 @@ Object {
   "isStale": false,
   "number": 5,
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
 }
 `;
@@ -255,6 +260,7 @@ Object {
   "isStale": false,
   "number": 5,
   "state": "open",
+  "targetBranch": "master",
   "title": "title",
 }
 `;
diff --git a/test/platform/bitbucket/_fixtures/responses.js b/test/platform/bitbucket/_fixtures/responses.js
index ff871a2f567e760d922ba2ee38e961dea91929df..0c47566b7bd4a126294b4128593d6a337ff406aa 100644
--- a/test/platform/bitbucket/_fixtures/responses.js
+++ b/test/platform/bitbucket/_fixtures/responses.js
@@ -1,6 +1,7 @@
 const pr = id => ({
   id,
   source: { branch: { name: 'branch' } },
+  destination: { branch: { name: 'master' } },
   title: 'title',
   summary: { raw: 'summary' },
   state: 'OPEN',
diff --git a/test/platform/github/__snapshots__/index.spec.ts.snap b/test/platform/github/__snapshots__/index.spec.ts.snap
index 6446d9ae6562a951c035b24a7de7820e4d9973d1..f022c4567e33bbed07e2d11051c005be35eea3a1 100644
--- a/test/platform/github/__snapshots__/index.spec.ts.snap
+++ b/test/platform/github/__snapshots__/index.spec.ts.snap
@@ -217,6 +217,7 @@ Object {
   "isStale": true,
   "number": 2500,
   "state": "open",
+  "targetBranch": "master",
   "title": "chore(deps): update dependency jest to v23.6.0",
 }
 `;
diff --git a/test/platform/github/_fixtures/graphql/pullrequest-1.json b/test/platform/github/_fixtures/graphql/pullrequest-1.json
index 7278c6921ae27d3c27367afc0fc2117f3cd192e9..d028e8025a76fdceb7d3c92287df79c4640f1e3c 100644
--- a/test/platform/github/_fixtures/graphql/pullrequest-1.json
+++ b/test/platform/github/_fixtures/graphql/pullrequest-1.json
@@ -5,6 +5,7 @@
         "nodes": [
           {
             "number": 2433,
+            "baseRefName": "master",
             "headRefName": "renovate/major-got-packages",
             "title": "build(deps): update got packages (major)",
             "mergeable": "MERGEABLE",
@@ -44,6 +45,7 @@
           },
           {
             "number": 2500,
+            "baseRefName": "master",
             "headRefName": "renovate/jest-monorepo",
             "title": "chore(deps): update dependency jest to v23.6.0",
             "mergeable": "UNKNOWN",
diff --git a/test/platform/github/_fixtures/graphql/pullrequests-closed.json b/test/platform/github/_fixtures/graphql/pullrequests-closed.json
index f4488f76e595667e631a5669c3593b9b188dd636..497c086abce6eba81a4d8241875415483dec430b 100644
--- a/test/platform/github/_fixtures/graphql/pullrequests-closed.json
+++ b/test/platform/github/_fixtures/graphql/pullrequests-closed.json
@@ -5,6 +5,7 @@
         "nodes": [
           {
             "number": 2500,
+            "baseRefName": "master",
             "headRefName": "renovate/jest-monorepo",
             "state": "MERGED",
             "title": "chore(deps): update dependency jest to v23.6.0",
diff --git a/test/platform/gitlab/__snapshots__/index.spec.ts.snap b/test/platform/gitlab/__snapshots__/index.spec.ts.snap
index 8ffa8dd1b6d133ee95a321ad6cd1238f741ea9e1..9db70e0fa28692a463f2aaad15a2fe1bbba3d3be 100644
--- a/test/platform/gitlab/__snapshots__/index.spec.ts.snap
+++ b/test/platform/gitlab/__snapshots__/index.spec.ts.snap
@@ -147,6 +147,8 @@ Object {
   "number": 91,
   "source_branch": "some-branch",
   "state": "open",
+  "targetBranch": "master",
+  "target_branch": "master",
 }
 `;
 
@@ -167,6 +169,8 @@ Object {
   "number": 12345,
   "source_branch": "some-branch",
   "state": "merged",
+  "targetBranch": "master",
+  "target_branch": "master",
 }
 `;
 
@@ -186,6 +190,8 @@ Object {
   "number": 12345,
   "source_branch": "some-branch",
   "state": "open",
+  "targetBranch": "master",
+  "target_branch": "master",
 }
 `;
 
@@ -204,6 +210,8 @@ Object {
   "number": 12345,
   "source_branch": "some-branch",
   "state": "open",
+  "targetBranch": "master",
+  "target_branch": "master",
 }
 `;
 
diff --git a/test/platform/gitlab/index.spec.ts b/test/platform/gitlab/index.spec.ts
index 022c93c81da6907796710a3b1e65f7cf83ff129d..106d2f0bb4d39afc8acd2accc2128fc65cf84283 100644
--- a/test/platform/gitlab/index.spec.ts
+++ b/test/platform/gitlab/index.spec.ts
@@ -310,7 +310,14 @@ describe('platform/gitlab', () => {
     it('should return the PR object', async () => {
       await initRepo();
       api.get.mockReturnValueOnce({
-        body: [{ iid: 91, source_branch: 'some-branch', state: 'opened' }],
+        body: [
+          {
+            iid: 91,
+            source_branch: 'some-branch',
+            target_branch: 'master',
+            state: 'opened',
+          },
+        ],
       } as any);
       api.get.mockReturnValueOnce({
         body: {
@@ -320,6 +327,7 @@ describe('platform/gitlab', () => {
           deletions: 1,
           commits: 1,
           source_branch: 'some-branch',
+          target_branch: 'master',
           base: {
             sha: '1234',
           },
@@ -778,6 +786,7 @@ describe('platform/gitlab', () => {
           merge_status: 'cannot_be_merged',
           diverged_commits_count: 5,
           source_branch: 'some-branch',
+          target_branch: 'master',
         },
       } as any);
       api.get.mockReturnValueOnce({
@@ -798,6 +807,7 @@ describe('platform/gitlab', () => {
           state: 'open',
           diverged_commits_count: 5,
           source_branch: 'some-branch',
+          target_branch: 'master',
         },
       } as any);
       api.get.mockReturnValueOnce({ body: [{ status: 'success' }] } as any); // get commit statuses
@@ -817,6 +827,7 @@ describe('platform/gitlab', () => {
               merge_status: 'cannot_be_merged',
               diverged_commits_count: 2,
               source_branch: 'some-branch',
+              target_branch: 'master',
             },
           } as any)
       );