diff --git a/.github/workflows/check_pr.yml b/.github/workflows/check_pr.yml
index c9e23ecd..cccf5f5d 100644
--- a/.github/workflows/check_pr.yml
+++ b/.github/workflows/check_pr.yml
@@ -7,6 +7,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
+      with:
+        submodules: recursive
     
     - name: Setup .NET
       uses: actions/setup-dotnet@v4