diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2225e2b7129f50047f4869f508dde7d583d62d54..ff4357760a2df668ab4d1d21782706ceff74abb8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,3 +4,5 @@ build:
     - install_clean.sh bundle-complete && apt-get update -qq && apt-get install -y -qq build-essential
   script:
     - make -C Tools
+variables:
+  GIT_SUBMODULE_STRATEGY: recursive