diff --git a/.github/workflows/pkgcheck_merge.yaml b/.github/workflows/pkgcheck_merge.yaml
index 72489ee6a..8116c2308 100644
--- a/.github/workflows/pkgcheck_merge.yaml
+++ b/.github/workflows/pkgcheck_merge.yaml
@@ -1,7 +1,8 @@
 name: pkgcheck_merge
 on:
   pull_request:
-    branches: [master]
+    branches:
+      - master
 
 jobs:
   build: