diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3b9a7ef..e11fbc9 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,3 +11,5 @@ pages:
       - public
   rules:
     - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+variables:
+  GIT_SUBMODULE_STRATEGY: recursive