diff --git a/.github/workflows/build_wheel.yml b/.github/workflows/build_wheel.yml
index def381cc..35502178 100644
--- a/.github/workflows/build_wheel.yml
+++ b/.github/workflows/build_wheel.yml
@@ -46,6 +46,8 @@ jobs:
     steps:
       - name: Checkout repo
         uses: actions/checkout@v5
+        with:
+          submodules: true
       - name: Install Python
         uses: actions/setup-python@v5
         with: