diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 29efbd461c4c4d57d5e897657c56bba297f0fdd3..73c6a6bcbebf75d9539964b986ff7b95ec9e4578 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -17,6 +17,7 @@ variables:
   NIXPKGS_ALLOW_UNFREE: "1"
   NIXPKGS_ALLOW_INSECURE: "1"
   DOCKER_DRIVER: overlay2
+  DOCKER_HOST: tcp://docker:2375/
   GIT_DEPTH: 10
 
 stages: