diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index b22a114c..e43132d9 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -8,6 +8,7 @@ on:
 jobs:
   check:
     name: Compare local <-> nightly
+    if: github.repository_owner == 'hyperion-project'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2