diff --git a/lib/platform/git/storage.js b/lib/platform/git/storage.js
index aee22ceef4eb13e0bd8c04d61aae4fcddcf46e3f..c496001def6a33990959f5062cbec8781b498b04 100644
--- a/lib/platform/git/storage.js
+++ b/lib/platform/git/storage.js
@@ -35,7 +35,7 @@ class Storage {
       await git.raw(['reset', '--hard']);
       await git.checkout(branchName);
       await git.raw(['reset', '--hard', 'origin/' + branchName]);
-      await git.clean('-fd');
+      await git.raw(['clean', '-fd']);
     }
 
     // istanbul ignore next
@@ -152,7 +152,7 @@ class Storage {
 
     async function createBranch(branchName, sha) {
       await git.reset('hard');
-      await git.clean('-fd');
+      await git.raw(['clean', '-fd']);
       await git.checkout(['-B', branchName, sha]);
       await git.push(['origin', branchName, '--force']);
     }