diff --git a/mongoengine/base.py b/mongoengine/base.py
index fbd95b3c..55323ddc 100644
--- a/mongoengine/base.py
+++ b/mongoengine/base.py
@@ -1,9 +1,9 @@
-import sys
-import pymongo
-
 from queryset import QuerySet, QuerySetManager
 from queryset import DoesNotExist, MultipleObjectsReturned
 
+import sys
+import pymongo
+
 
 _document_registry = {}