diff --git a/beat/web/common/serializers.py b/beat/web/common/serializers.py
index e4722235542bf0d853e845808e40982daada742c..09db031a020429c530d461af314a2599b2f3c335 100644
--- a/beat/web/common/serializers.py
+++ b/beat/web/common/serializers.py
@@ -283,11 +283,11 @@ class MapDot(dict):
         super(MapDot, self).__init__(*args, **kwargs)
         for arg in args:
             if isinstance(arg, dict):
-                for k, v in arg.iteritems():
+                for k, v in arg.items():
                     self[k] = v
 
         if kwargs:
-            for k, v in kwargs.iteritems():
+            for k, v in kwargs.items():
                 self[k] = v
 
     def __getattr__(self, attr):