diff --git a/src/caosdb/common/models.py b/src/caosdb/common/models.py
index 6475bc99ec825e102d5eac1b38d506247c11ebcb..3421f9ce39fc848f774b5d5d38280434354da8de 100644
--- a/src/caosdb/common/models.py
+++ b/src/caosdb/common/models.py
@@ -125,7 +125,6 @@ class Entity(object):
         self.id = id
         self.state = None
 
-
     def copy(self):
         """
         Return a copy of entity.