diff --git a/.github/workflows/maintenance_bot.yaml b/.github/workflows/maintenance_bot.yaml
index 4cea9235ed1..0a058af6fdc 100644
--- a/.github/workflows/maintenance_bot.yaml
+++ b/.github/workflows/maintenance_bot.yaml
@@ -6,6 +6,7 @@ on:
 jobs:
   labeler:
     name: Assign labels and milestone
+    if: github.repository_owner == 'galaxyproject'
     runs-on: ubuntu-latest
     env:
       MILESTONE_NUMBER: 19