diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 49611667..c150e73c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -6,7 +6,7 @@ name: Auto Build
 # events but only for the master branch
 on:
   push:
-    branches: [ master ]
+    branches: [ "master" ]
 
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs: