diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 32d6d00..62c0a14 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,7 +26,7 @@ jobs:
   test:
     uses: pyapp-kit/workflows/.github/workflows/test-pyrepo.yml@v2
     with:
-      os: ${{ matrix.os }}
+      os: ${{ matrix.platform }}
       python-version: ${{ matrix.python-version }}
       coverage-upload: artifact
     strategy: