diff --git a/lib/platform/azure/azure-helper.ts b/lib/platform/azure/azure-helper.ts
index b1baa1714088bb8c42e13d515173763d9b999557..c539e9fcf067f5d3c7fb620d886c2311f53a0d80 100644
--- a/lib/platform/azure/azure-helper.ts
+++ b/lib/platform/azure/azure-helper.ts
@@ -191,6 +191,8 @@ export function getRenovatePRFormat(azurePr: GitPullRequest): Pr {
     pr.isConflicted = true;
   }
 
+  // value is updated later to be correct for
+  // specific pr's after filtering, for performance
   pr.isModified = false;
 
   return pr;
diff --git a/lib/platform/azure/index.ts b/lib/platform/azure/index.ts
index 0dfa208723f42a6c7b3c4084d2b1f22681480c3a..1e068eac6a1fc49818f885aced723df985b18a6c 100644
--- a/lib/platform/azure/index.ts
+++ b/lib/platform/azure/index.ts
@@ -251,6 +251,7 @@ export async function getPrList(): Promise<Pr[]> {
       prs = prs.concat(fetchedPrs);
       skip += 100;
     } while (fetchedPrs.length > 0);
+
     config.prList = prs.map(azureHelper.getRenovatePRFormat);
     logger.info({ length: config.prList.length }, 'Retrieved Pull Requests');
   }
@@ -279,6 +280,15 @@ export async function getPr(pullRequestId: number): Promise<Pr | null> {
   azurePr.labels = labels
     .filter(label => label.active)
     .map(label => label.name);
+
+  const commits = await azureApiGit.getPullRequestCommits(
+    config.repoId,
+    pullRequestId
+  );
+  azurePr.isModified =
+    commits.length > 0 &&
+    commits[0].author.name !== commits[commits.length - 1].author.name;
+
   return azurePr;
 }
 
diff --git a/test/platform/azure/__snapshots__/index.spec.ts.snap b/test/platform/azure/__snapshots__/index.spec.ts.snap
index 16ce1928c6e10a323974016f9c0d465f9ab83564..ea8e65413bb2f3ecc71bbf05dabed2db7c0b389d 100644
--- a/test/platform/azure/__snapshots__/index.spec.ts.snap
+++ b/test/platform/azure/__snapshots__/index.spec.ts.snap
@@ -90,6 +90,7 @@ exports[`platform/azure getBranchPr(branchName) should return the pr 1`] = `null
 
 exports[`platform/azure getPr(prNo) should return a pr in the right format 1`] = `
 Object {
+  "isModified": false,
   "labels": Array [
     "renovate",
   ],
@@ -97,6 +98,14 @@ Object {
 }
 `;
 
+exports[`platform/azure getPr(prNo) should return a pr thats been modified 1`] = `
+Object {
+  "isModified": true,
+  "labels": Array [],
+  "pullRequestId": 1234,
+}
+`;
+
 exports[`platform/azure getPrBody(input) returns updated pr body 1`] = `"https://github.com/foo/bar/issues/5 plus also [a link](https://github.com/foo/bar/issues/5)"`;
 
 exports[`platform/azure getRepos() should return an array of repos 1`] = `
diff --git a/test/platform/azure/index.spec.ts b/test/platform/azure/index.spec.ts
index 5506df28c6475535786835cdfb7a6ec3fdc6107f..7a91f30dc3346980db8def7c5171a0304e11768d 100644
--- a/test/platform/azure/index.spec.ts
+++ b/test/platform/azure/index.spec.ts
@@ -215,6 +215,7 @@ describe('platform/azure', () => {
                   state: 'open',
                 },
               ]),
+            getPullRequestCommits: jest.fn().mockReturnValue([]),
           } as any)
       );
       azureHelper.getNewBranchName.mockImplementationOnce(
@@ -251,6 +252,7 @@ describe('platform/azure', () => {
                   state: 'closed',
                 },
               ]),
+            getPullRequestCommits: jest.fn().mockReturnValue([]),
           } as any)
       );
       azureHelper.getNewBranchName.mockImplementationOnce(
@@ -287,6 +289,7 @@ describe('platform/azure', () => {
                   state: 'closed',
                 },
               ]),
+            getPullRequestCommits: jest.fn().mockReturnValue([]),
           } as any)
       );
       azureHelper.getNewBranchName.mockImplementationOnce(
@@ -323,6 +326,7 @@ describe('platform/azure', () => {
                   state: 'closed',
                 },
               ]),
+            getPullRequestCommits: jest.fn().mockReturnValue([]),
           } as any)
       );
       azureHelper.getNewBranchName.mockImplementationOnce(
@@ -387,6 +391,7 @@ describe('platform/azure', () => {
                   status: 2,
                 },
               ]),
+            getPullRequestCommits: jest.fn().mockReturnValue([]),
           } as any)
       );
       azureHelper.getNewBranchName.mockImplementation(
@@ -474,13 +479,57 @@ describe('platform/azure', () => {
             getPullRequestLabels: jest
               .fn()
               .mockReturnValue([{ active: true, name: 'renovate' }]),
+            getPullRequestCommits: jest.fn().mockReturnValue([
+              {
+                author: {
+                  name: 'renovate',
+                },
+              },
+            ]),
+          } as any)
+      );
+      azureHelper.getRenovatePRFormat.mockImplementation(
+        () =>
+          ({
+            pullRequestId: 1234,
+          } as any)
+      );
+      const pr = await azure.getPr(1234);
+      expect(pr).toMatchSnapshot();
+    });
+    it('should return a pr thats been modified', async () => {
+      await initRepo({ repository: 'some/repo' });
+      azureApi.gitApi.mockImplementation(
+        () =>
+          ({
+            getPullRequests: jest
+              .fn()
+              .mockReturnValue([])
+              .mockReturnValueOnce([
+                {
+                  pullRequestId: 1234,
+                },
+              ]),
+            getPullRequestLabels: jest.fn().mockReturnValue([]),
+            getPullRequestCommits: jest.fn().mockReturnValue([
+              {
+                author: {
+                  name: 'renovate',
+                },
+              },
+              {
+                author: {
+                  name: 'end user',
+                },
+              },
+            ]),
           } as any)
       );
       azureHelper.getRenovatePRFormat.mockImplementation(
         () =>
           ({
             pullRequestId: 1234,
-            labels: ['renovate'],
+            isModified: false,
           } as any)
       );
       const pr = await azure.getPr(1234);