diff --git a/src/Merge/_MergePerson.py b/src/Merge/_MergePerson.py
index dab4a8bd6..140405bad 100644
--- a/src/Merge/_MergePerson.py
+++ b/src/Merge/_MergePerson.py
@@ -434,7 +434,7 @@ class MergePeople(object):
         self.db.set_birth_death_index(new)
 
         # copy attributes
-        new.set_attribute_list(self.p1.get_attribute_list() +
+        map(new.add_attribute, self.p1.get_attribute_list() +
                                self.p2.get_attribute_list())
 
         # copy addresses