diff --git a/.github/workflows/key4hep-build.yaml b/.github/workflows/key4hep-build.yaml
index deeea38..f013f0f 100644
--- a/.github/workflows/key4hep-build.yaml
+++ b/.github/workflows/key4hep-build.yaml
@@ -3,6 +3,7 @@ name: Key4hep build
 on:
   push:
   workflow_dispatch:
+  pull_request:
 
 jobs:
   build: