diff --git a/.woodpecker.yml b/.woodpecker.yml
index 15d9c89..4413123 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -1,4 +1,9 @@
 skip_clone: true
+when:
+  event: pull_request
+  action:
+    - merge
+  branch: master
 steps:
   debug-location:
     image: alpine