diff --git a/gajim/common/dataforms.py b/gajim/common/dataforms.py
index 547652efd..9ad76c100 100644
--- a/gajim/common/dataforms.py
+++ b/gajim/common/dataforms.py
@@ -551,7 +551,7 @@ class DataRecord(ExtendedNode):
             fdel(self)
             for field in fields:
                 if not isinstance(field, DataField):
-                    ExtendField(extend=field)
+                    ExtendField(field)
                 self.addChild(node=field)
 
         def fdel(self):