diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b833a0d6cc49bb08d6c0f915ed2089cbb7796f54..811d66477b21874b010265206aa060592596f5d2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,12 +9,13 @@ variables:
 build-p2:
   stage: build
   tags: 
-    - docker # use 
+    - docker
   image: maven:3.6.3-adoptopenjdk-15
   script:
     - mvn --version
     - mvn clean install
-  when: manual
+  only:
+    - master
   artifacts:
     paths:
       - de.hft-stuttgart.indriya.p2site/target/repository/