diff --git a/.github/workflows/mend_ruby.yml b/.github/workflows/mend_ruby.yml
index a6a7d1b..d4fb8ce 100644
--- a/.github/workflows/mend_ruby.yml
+++ b/.github/workflows/mend_ruby.yml
@@ -23,6 +23,7 @@ env:
 
 jobs:
   mend:
+    if: github.event.pull_request.head.repo.fork == false
     runs-on: "ubuntu-latest"
     continue-on-error: ${{ contains(fromJson('["puppetlabs","puppet-toy-chest"]'), github.repository_owner) != true }}
     steps: