diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8f943f0..1a02bf4 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -4,7 +4,7 @@ on:
   push:
     branches:
       - master
-      - ${{ github.ref }}
+      - ${{ GITHUB_REF }}
 
 jobs:
   build: