diff --git a/lib/util/git/index.ts b/lib/util/git/index.ts
index 492800a3415434..7f9c19f582eeab 100644
--- a/lib/util/git/index.ts
+++ b/lib/util/git/index.ts
@@ -409,7 +409,7 @@ export async function checkoutBranch(branchName: string): Promise<CommitSha> {
   try {
     config.currentBranch = branchName;
     config.currentBranchSha = (
-      await git.raw(['rev-parse', 'origin/' + branchName])
+      await git.raw(['rev-parse', 'origin/' + branchName, '--'])
     ).trim();
     await git.checkout(['-f', branchName, '--']);
     const latestCommitDate = (await git.log({ n: 1 }))?.latest?.date;