diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 9724267..2b659f5 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -108,6 +108,7 @@ jobs:
       - name: tox
         run: tox
         env:
+          TOXENV: ${{ matrix.toxenv }}
           COVERALLS_PARALLEL: 'true'
           COVERALLS_SERVICE_NAME: github
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}