diff --git a/.github/workflows/rllm.yml b/.github/workflows/rllm.yml
index d25fe3c9..6d7d774f 100644
--- a/.github/workflows/rllm.yml
+++ b/.github/workflows/rllm.yml
@@ -20,6 +20,8 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
+        with:
+          submodules: true
       - uses: hendrikmuhs/ccache-action@v1.2
 
       - run: pip install torch==2.1.0