diff --git a/.github/workflows/python-package-poetry.yml b/.github/workflows/python-package-poetry.yml
index a4fdb27..6829cf8 100644
--- a/.github/workflows/python-package-poetry.yml
+++ b/.github/workflows/python-package-poetry.yml
@@ -39,7 +39,7 @@ jobs:
         poetry run leech --help
     - name: Build a cover
       run: |
-        poetry run ebook/cover.py && file -E output.png && rm output.png
+        poetry run python ebook/cover.py && file -E output.png && rm output.png
     - name: Verify poetry build
       run: |
         poetry build && ls -og dist/*