diff --git a/sisyphus/job_path.py b/sisyphus/job_path.py
index dc8abf8..1d70ff7 100644
--- a/sisyphus/job_path.py
+++ b/sisyphus/job_path.py
@@ -250,12 +250,11 @@ def __deepcopy__(self, memo):
         result = cls.__new__(cls)
         memo[id(self)] = result
         for k, v in self.__dict__.items():
-            if k != 'users':
+            if k != "users":
                 setattr(result, k, copy.deepcopy(v, memo))
         result.users = set()
         return result
 
-
     def __getstate__(self):
         """Skips exporting users
         :return: