diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 279a87d..7741165 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -19,6 +19,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
+      with:
+        submodules: 'true'
 
     - name: Configure CMake
       # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.