diff --git a/.github/workflows/r-build-test.yml b/.github/workflows/r-build-test.yml
index 5d51870a..8cd100aa 100644
--- a/.github/workflows/r-build-test.yml
+++ b/.github/workflows/r-build-test.yml
@@ -56,7 +56,7 @@ jobs:
       - name: Upload artifacts
         uses: actions/upload-artifact@v4
         with:
-          name: tmp-${{ env.TAG }}
+          name: tmp-${{ matrix.tag }}
           path: tmp
 
   regression-test: