diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3dfd23e..e02ebce 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -6,7 +6,8 @@ build:docker:
   interruptible: true
   stage: build
   rules:
-    - if: $CI_COMMIT_BRANCH != $CI_DEFAULT_BRANCH
+    - if: $CI_COMMIT_BRANCH && $CI_COMMIT_BRANCH != $CI_DEFAULT_BRANCH
+    - if: $CI_PIPELINE_SOURCE == 'merge_request_event'
   tags: [ docker ]
   before_script:
     - echo "COMMIT=${CI_COMMIT_SHA}" >> version.env  # COMMIT=`git rev-parse HEAD`
@@ -21,6 +22,7 @@ build:apt:
   stage: build
   rules:
     - if: $CI_COMMIT_BRANCH
+    - if: $CI_PIPELINE_SOURCE == 'merge_request_event'
   before_script:
     - echo "COMMIT=${CI_COMMIT_SHA}" >> version.env
     - source version.env
@@ -57,6 +59,7 @@ build:pacman:
   stage: build
   rules:
     - if: $CI_COMMIT_BRANCH
+    - if: $CI_PIPELINE_SOURCE == 'merge_request_event'
   before_script:
     - echo "COMMIT=${CI_COMMIT_SHA}" >> version.env
     # install build dependencies