diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 7bf705fef..ab8988d33 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -58,3 +58,4 @@ jobs:
         run: if [[ $CONTAINER != "osx" ]]; then docker-compose run test-$CONTAINER; else bash test/scripts/test_osx.sh ; fi
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          CONTAINER: ${{ matrix.dockerfile }}