diff --git a/.github/workflows/test_publish.yml b/.github/workflows/test_publish.yml
index d4feb49..df56982 100644
--- a/.github/workflows/test_publish.yml
+++ b/.github/workflows/test_publish.yml
@@ -18,7 +18,7 @@ jobs:
         run: pdm install -G test -G ci_test
       - name: Run test suite
         run:
-          YOSYS=yowasp-yosys pdm test
+          SBY=yowasp-sby YOSYS=yowasp-yosys pdm test
 
   publish_pypi:
     if: github.ref == 'refs/heads/main'