diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 60009b4f33..1c2ee02628 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -9,7 +9,7 @@ jobs:
   build-distribution:
     name: Build catalystcoop.pudl distribution for PyPI
     runs-on: ubuntu-latest
-    if: github.event.pull_request.head.repo.fork == false
+    if: github.event.pull_request.head.repo.fork == true
     steps:
       - name: Checkout source
         uses: actions/checkout@v4