diff --git a/.github/workflows/pr-netlify.yml b/.github/workflows/pr-netlify.yml
index 355d2f52cd8..390885cd64f 100644
--- a/.github/workflows/pr-netlify.yml
+++ b/.github/workflows/pr-netlify.yml
@@ -14,6 +14,8 @@ jobs:
   deploy:
     name: 'Deploy PR'
     runs-on: ubuntu-latest
+    # Only run on the main repository, not on forks
+    if: github.repository == 'electron-userland/electron-builder'
 
     steps:
       - name: Checkout code repository