diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 09dc1c2..b5f7549 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -34,6 +34,8 @@
 # This specific template is located at:
 # https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/ci/templates/Getting-Started.gitlab-ci.yml
 
+variables:
+  GIT_SUBMODULE_STRATEGY: recursive
 default:
   image: rikorose/gcc-cmake
 stages: