diff --git a/.github/workflows/python-build.yml b/.github/workflows/python-build.yml
index 0089a62..91581e9 100644
--- a/.github/workflows/python-build.yml
+++ b/.github/workflows/python-build.yml
@@ -24,7 +24,7 @@ jobs:
 
     - name: Test - Code format
       run: |
-        black --check --diff --color pdf2zh/*.py
+        black --check --diff --color pdf2zh/*.py test/*.py
         flake8 --ignore E203,E261,E501,W503,E741
     
     - name: Test - Unit Test