diff --git a/Scripts/Prepare-Build.ps1 b/Scripts/Prepare-Build.ps1
index 3198e850a7d2dae3548d40bade05dce21259653e..e2b46c7b9b5d04caf6f51c3d9dd45f85748aad43 100644
--- a/Scripts/Prepare-Build.ps1
+++ b/Scripts/Prepare-Build.ps1
@@ -66,8 +66,8 @@ try {
     $DescItems = Parse-GitDescribe $CommitName
 
     if ($GitStatus.Length -gt 0) {
-        $StatusWarning = "  <--  WARNING: repository has uncommitted changes!"
-        $CommitName = "$($CommitName)-unclean"
+        $StatusWarning = "  <--  WARNING, repository has uncommitted changes!"
+        $CommitName += "-unclean"
     }
 }
 catch {