diff --git a/tests/test_tutorial/test_testing/test_tutorial004.py b/tests/test_tutorial/test_testing/test_tutorial004.py
index 15ff1daba..812ee44c1 100644
--- a/tests/test_tutorial/test_testing/test_tutorial004.py
+++ b/tests/test_tutorial/test_testing/test_tutorial004.py
@@ -2,4 +2,4 @@ from docs_src.app_testing.tutorial004 import test_read_items
 
 
 def test_main():
-    test_read_items()
\ No newline at end of file
+    test_read_items()