diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 511700200c..c661c19c89 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -5,6 +5,7 @@ on:
   pull_request: []
 jobs:
   tests:
+    if: github.repository == 'Homebrew/brew'
     runs-on: ${{ matrix.os }}
     strategy:
       matrix: