diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7f933d1..3ea4894 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -34,6 +34,7 @@ jobs:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
     runs-on: ubuntu-22.04
+    if: github.repository == 'skyzh/mini-lsm'
     steps:
       - name: Deploy to GitHub Pages
         id: deployment