diff --git a/money/contrib/django/models/managers.py b/money/contrib/django/models/managers.py
index 4feb992..8aabb41 100644
--- a/money/contrib/django/models/managers.py
+++ b/money/contrib/django/models/managers.py
@@ -9,7 +9,10 @@
 class QuerysetWithMoney(QuerySet):
     
     def _update_params(self, kwargs):
-        from django.db.models.sql.constants import LOOKUP_SEP
+        try:
+            from django.db.models.sql.constants import LOOKUP_SEP
+        except ImportError:
+            from django.db.models.constants import LOOKUP_SEP  # Forward compatibility for Django > 1.4
         from money import Money
         to_append = {}
         for name, value in kwargs.items():