diff --git a/nova/scheduler/host_filter.py b/nova/scheduler/host_filter.py
index 826a99b0..4024ec85 100644
--- a/nova/scheduler/host_filter.py
+++ b/nova/scheduler/host_filter.py
@@ -31,6 +31,7 @@ import types
 from nova import exception
 from nova import flags
 import nova.scheduler
+from nova.scheduler import filters
 
 
 FLAGS = flags.FLAGS