diff --git a/de/heat-templates/top.yaml b/de/heat-templates/top.yaml
index 66f5680..e72fa2d 100644
--- a/de/heat-templates/top.yaml
+++ b/de/heat-templates/top.yaml
@@ -54,7 +54,7 @@
     default: '10.11.12.200'
   private_floating_network_gateway:
     type: string
-    default: '10.11.12.11'
+    default: ''
   private_floating_interface:
     description: Interface which carries floating network for child OpenStack.
     type: string