diff --git a/scripts/geodata/osm/osm_admin_boundaries.py b/scripts/geodata/osm/osm_admin_boundaries.py
index 1c50f2cb..46deb81c 100644
--- a/scripts/geodata/osm/osm_admin_boundaries.py
+++ b/scripts/geodata/osm/osm_admin_boundaries.py
@@ -9,12 +9,12 @@ import array
 import logging
 
 from bisect import bisect_left
+from collections import defaultdict, OrderedDict
 from itertools import izip, combinations
 
 from geodata.coordinates.conversion import latlon_to_decimal
 from geodata.osm.extract import *
 
-
 class OSMAdminPolygonReader(object):
     '''
     OSM relations are stored with pointers to their bounding ways,