diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 72ecfcc..1eed383 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -126,6 +126,7 @@ jobs:
         }
         if ($invalidPackages -gt 0) {
           Write-Output "::error::$invalidPackages NuGet package(s) failed validation."
+          exit 1
         }
 
   publish-myget: