diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 57f812a..a93b812 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,7 +3,7 @@ image: docker.io/debian:stable-slim
 build:
   script:
     - apt-get update
-    - apt-get -y install openscad
+    - apt-get install -y --no-install-recommends make openscad
     - make main
     - make keys_en-us-intl
     - make keys_de