diff --git a/src/darker/files.py b/src/darker/files.py
index 2c5897d38..ffc1bd73f 100644
--- a/src/darker/files.py
+++ b/src/darker/files.py
@@ -108,7 +108,7 @@ def _gen_python_files(
             root_relative_path = f"{root_relative_path}/"
 
         if any(
-                _path_is_excluded(root_relative_path, x)
+            _path_is_excluded(root_relative_path, x)
                 for x in [exclude, extend_exclude, force_exclude]
         ) or _resolves_outside_root_or_cannot_stat(child, root):
             continue