diff --git a/.github/workflows/cicd-main.yml b/.github/workflows/cicd-main.yml
index c7fad39bbbd..3683ccb9dc5 100644
--- a/.github/workflows/cicd-main.yml
+++ b/.github/workflows/cicd-main.yml
@@ -41,6 +41,7 @@ jobs:
   is-not-external-contributor:
     runs-on: ubuntu-latest
     environment: nemo-ci
+    if: github.repository == 'NVIDIA/Megatron-LM'
     outputs:
       is_external_contributor: ${{ github.event.pull_request.user.type == 'User' }}
     permissions: