diff --git a/.github/workflows/webapi.yml b/.github/workflows/webapi.yml
index 38f45f0c..2d3bac22 100644
--- a/.github/workflows/webapi.yml
+++ b/.github/workflows/webapi.yml
@@ -36,7 +36,7 @@ jobs:
           path: ${{env.DOTNET_ROOT}}/webapi
 
   deploy:
-    if: contains(github.ref, "master")
+    if: contains(github.ref, 'master'')
     runs-on: windows-latest
     needs: build
     environment: