diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 74f3935..ab65bba 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -20,6 +20,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
+    with:
+      submodules: recursive
     
     - name: Install system dependencies
       if: runner.os == 'Linux'