diff --git a/.github/workflows/auto-clang-format.yml b/.github/workflows/auto-clang-format.yml
index a6422c14..0da73acd 100644
--- a/.github/workflows/auto-clang-format.yml
+++ b/.github/workflows/auto-clang-format.yml
@@ -7,8 +7,6 @@ jobs:
 
     steps:
     - uses: actions/checkout@v6
-      with:
-        ref: ${{ github.head_ref }}
     - uses: DoozyX/clang-format-lint-action@v0.20
       with:
         source: '.'