diff --git a/build.ps1 b/build.ps1
index ec13467c..bc14aded 100644
--- a/build.ps1
+++ b/build.ps1
@@ -41,7 +41,7 @@ Update-AppVeyorBuildVersion $version
 if (Test-IsAppVeyorBuildTriggeredByGitTag)
 {
     $gitTag = Get-AppVeyorGitTag
-    Test-CompareVersions $giraffe $gitTag
+    Test-CompareVersions $version $gitTag
 }
 
 Write-DotnetCoreVersions