diff --git a/tests/test_main.py b/tests/test_main.py
index 2d3a100a..9670478c 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -6160,7 +6160,9 @@ def test_main_msgspec_struct_snake_case():
         assert return_code == Exit.OK
         assert (
             output_file.read_text()
-            == (EXPECTED_MAIN_PATH / 'main_msgspec_struct_snake_case' / 'output.py').read_text()
+            == (
+                EXPECTED_MAIN_PATH / 'main_msgspec_struct_snake_case' / 'output.py'
+            ).read_text()
         )