diff --git a/devstack/samples/webserver.sh b/devstack/samples/webserver.sh
index ee4662cf7..724fc8578 100755
--- a/devstack/samples/webserver.sh
+++ b/devstack/samples/webserver.sh
@@ -1,6 +1,9 @@
-#!/bin/ash
+#!/bin/sh
 
 MYIP=$(/sbin/ifconfig eth0|grep 'inet addr'|awk -F: '{print $2}'| awk '{print $1}');
+OUTPUT_STR="Welcome to $MYIP\r"
+OUTPUT_LEN=${#OUTPUT_STR}
+
 while true; do
-    echo -e "HTTP/1.0 200 OK\r\n\r\nWelcome to $MYIP" | sudo nc -l -p 80
+    echo -e "HTTP/1.0 200 OK\r\nContent-Length: ${OUTPUT_LEN}\r\n\r\n${OUTPUT_STR}" | sudo nc -l -p 80
 done