diff --git a/.github/workflows/code-format.yml b/.github/workflows/code-format.yml
index 0dcc9b5..2a5c7e0 100644
--- a/.github/workflows/code-format.yml
+++ b/.github/workflows/code-format.yml
@@ -16,6 +16,8 @@ jobs:
     steps:
       - name: Checkout target repo
         uses: actions/checkout@v4
+        with:
+          ref: develop
 
       # --- C/C++ ---
       - name: Install dependencies