diff --git a/initmudbjson.sh b/initmudbjson.sh
index 3088331..5ef4acc 100755
--- a/initmudbjson.sh
+++ b/initmudbjson.sh
@@ -4,6 +4,12 @@ bash initcfg.sh
 sed -i "s/API_INTERFACE = .\+\?\#/API_INTERFACE = \'mudbjson\' \#/g" userapiconfig.py
 ip_addr=`ifconfig -a|grep inet|grep -v inet6|grep -v "127.0.0."|grep -v -e "192\.168\..[0-9]\+\.[0-9]\+"|grep -v -e "10\.[0-9]\+\.[0-9]\+\.[0-9]\+"|awk '{print $2}'|tr -d "addr:"`
 ip_count=`echo $ip_addr|grep -e "^[0-9]\+\.[0-9]\+\.[0-9]\+\.[0-9]\+$" -c`
+
+if [[ $ip_count == 1 ]]; then
+	ip_addr=`ip a|grep inet|grep -v inet6|grep -v "127.0.0."|grep -v -e "192\.168\..[0-9]\+\.[0-9]\+"|grep -v -e "10\.[0-9]\+\.[0-9]\+\.[0-9]\+"|awk '{print $2}'"`
+	ip_addr=${ip_addr%/*}
+	ip_count=`echo $ip_addr|grep -e "^[0-9]\+\.[0-9]\+\.[0-9]\+\.[0-9]\+$" -c`
+fi
 if [[ $ip_count == 1 ]]; then
 	echo "server IP is "${ip_addr}
 	sed -i "s/SERVER_PUB_ADDR = .\+/SERVER_PUB_ADDR = \'"${ip_addr}"\'/g" userapiconfig.py