diff --git a/src/caosdb/common/models.py b/src/caosdb/common/models.py
index 86a281b1fd9b972178f0faf59a028dd49bd5d8da..db17eac30758b134042832fdee22a5d81e68cd97 100644
--- a/src/caosdb/common/models.py
+++ b/src/caosdb/common/models.py
@@ -1599,6 +1599,7 @@ class _Properties(list):
         if isinstance(prop, Entity):
             if prop in self:
                 list.remove(self, prop)
+                return
             else:
                 if prop.id is not None:
                     # by id