diff --git a/.github/workflows/release-nightly.yml b/.github/workflows/release-nightly.yml
index 987cb423897..b1e40f363e4 100644
--- a/.github/workflows/release-nightly.yml
+++ b/.github/workflows/release-nightly.yml
@@ -31,6 +31,7 @@ on:
 
 jobs:
   release:
+    if: github.repository == 'google-gemini/gemini-cli'
     environment: "${{ github.event.inputs.environment || 'prod' }}"
     runs-on: 'ubuntu-latest'
     permissions: