diff --git a/eng/build.ps1 b/eng/build.ps1
index 50aa653d5ea..a851bf25b8e 100644
--- a/eng/build.ps1
+++ b/eng/build.ps1
@@ -161,7 +161,7 @@ function Check-RequiredVersionBumps() {
   $targetBranch = $env:SYSTEM_PULLREQUEST_TARGETBRANCH
   if ($targetBranch) {
     # Prepend remote reference if the branch is not local
-    if (!$targetBranch.StartsWith("refs/head/")) {
+    if (!$targetBranch.StartsWith("refs/heads/")) {
       $targetBranch = "refs/remotes/origin/" + $targetBranch
     }
     $versionLineChanged = $false