diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 181d850c4..f1ac0e085 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -147,7 +147,7 @@ jobs:
       #   run: pip install pytest-mpl
 
       - name: Run tests
-        run: pytest ${env:TEST_OPTS}
+        run: pytest $(env:TEST_OPTS)
 
   test-macos:
     strategy: