diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 9d1302468..7e060924f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -278,6 +278,7 @@ jobs:
         popd
 
     - name: Upload artifact
+      if: ${{ github.repository == 'tildearrow/furnace' && github.ref_name == 'master' }}
       uses: actions/upload-artifact@v3
       with:
         name: ${{ steps.package-identify.outputs.id }}