diff --git a/.github/workflows/msbuild48.yml b/.github/workflows/msbuild48.yml
index 94fdff7867..23c68dcca2 100644
--- a/.github/workflows/msbuild48.yml
+++ b/.github/workflows/msbuild48.yml
@@ -4,7 +4,7 @@ on:
   push:
     branches: [ "master" ]
     paths:
-      - '**cs'
+      - '**.cs'
   workflow_dispatch:
 
 jobs: