diff --git a/.gitea/workflows/diag-ref-test.yml b/.gitea/workflows/diag-ref-test.yml
index 97eb0561f..73fe0e99f 100644
--- a/.gitea/workflows/diag-ref-test.yml
+++ b/.gitea/workflows/diag-ref-test.yml
@@ -3,6 +3,8 @@ on:
   workflow_dispatch:
   push:
     branches: ['**']
+  pull_request:
+    branches: ['**']
 
 jobs:
   diag-ref: