diff --git a/inception/orchestrator.py b/inception/orchestrator.py
index 659c381..9887cc0 100644
--- a/inception/orchestrator.py
+++ b/inception/orchestrator.py
@@ -92,10 +92,10 @@ orchestrator_opts = [
     cfg.StrOpt('chefserver_image',
                default='u1204-130716-gvc',
                help='name of image to construct chefserver'),
-    cfg.IntOpt('flavor',
+    cfg.StrOpt('flavor',
                default='m1.medium',
                help='name of instance flavor used for nodes'),
-    cfg.IntOpt('gateway_flavor',
+    cfg.StrOpt('gateway_flavor',
                default='m1.tiny',
                help='name of instance flavor used to construct gateway node'),
     cfg.StrOpt('key_name',