diff --git a/github/workflows/coverage.yml b/github/workflows/coverage.yml
index f07bde1..677ad58 100644
--- a/github/workflows/coverage.yml
+++ b/github/workflows/coverage.yml
@@ -8,6 +8,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+        with:
+          submodules: true
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal