diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index fc37df79c454c0023edbcf6bf193047af11b04b5..0d2ed88a90f2d954aafae6108f7d54390d2fcf4d 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,6 +2,7 @@ image: registry.gitlab.freifunk-stuttgart.de/firmware/ffs-buildenv:master
 
 variables:
   GIT_SUBMODULE_STRATEGY: normal
+  DOCKER_DRIVER: overlay2
 
 stages:
   - build