diff --git a/tools/genenv b/tools/genenv
index e182f66ed5..7ece02ad5c 100755
--- a/tools/genenv
+++ b/tools/genenv
@@ -240,7 +240,6 @@ MAGNUM_KEYSTONE_PASSWORD=$MAGNUM_KEYSTONE_PASSWORD
 MAGNUM_API_SERVICE_HOST=$MAGNUM_API_SERVICE_HOST
 PUBLIC_INTERFACE=$NOVA_PUBLIC_INTERFACE
 PUBLIC_IP=$HOST_IP
-PUBLIC_IP=$PUBLIC_IP
 RABBITMQ_PASS=$RABBIT_PASSWORD
 RABBITMQ_SERVICE_HOST=$RABBITMQ_SERVICE_HOST
 RABBITMQ_USER=$RABBIT_USER