diff --git a/.github/workflows/trigger-nightly.yaml b/.github/workflows/trigger-nightly.yaml
index 5654f6d13..7506d7e1a 100644
--- a/.github/workflows/trigger-nightly.yaml
+++ b/.github/workflows/trigger-nightly.yaml
@@ -8,6 +8,7 @@ on:
 jobs:
 
   trigger-nightly:
+    if: github.repository_owner == 'syncthing'
     runs-on: ubuntu-latest
     name: Push to release-nightly to trigger build
     steps: