diff --git a/tests/conftest.py b/tests/conftest.py
index 286fd9597..b428559d3 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -96,4 +96,4 @@ def pytest_collection_modifyitems(items):
     """
     for item in items:
         if 'qtbot' in item.fixturenames:
-            item.add_marker('gui')
\ No newline at end of file
+            item.add_marker('gui')