diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index 8b160ffe0..5fed57765 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -13,6 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+        ref: compile
       - uses: actions/setup-python@v3
         with:
           python-version: '3.9'