diff --git a/cluster-manager.sh b/cluster-manager.sh
index ec0a830..aaaffeb 100755
--- a/cluster-manager.sh
+++ b/cluster-manager.sh
@@ -237,6 +237,23 @@ case "$ACTION" in
 		rm LOCAL-${ARG_BACKUP_NAME}
 		;;
 
+	lang-add)
+		ARG_PREFIX=$2
+		ARG_KEY=$3
+		if [ -z $ARG_KEY ]; then
+			echo "ERROR: Please specify language prefix and key. e.g.: $0 $ACTION ode add_button"
+			exit 1
+		fi
+		SCRIPT_NAME="TEMP-$(date +%Y%m%d-%H%M%S).sql"
+		echo "INSERT INTO ow_base_language_prefix(prefix, label) SELECT '$ARG_PREFIX', '$ARG_PREFIX' FROM DUAL WHERE NOT EXISTS (SELECT id FROM ow_base_language_prefix WHERE prefix LIKE '$ARG_PREFIX' LIMIT 1);" > $SCRIPT_NAME
+		echo "SET @prefix_id = (SELECT id FROM ow_base_language_prefix WHERE prefix LIKE '$ARG_PREFIX' LIMIT 1);" >> $SCRIPT_NAME
+		echo "INSERT INTO ow_base_language_key(prefixId, \`key\`) VALUES(@prefix_id, '$ARG_KEY');" >> $SCRIPT_NAME
+		for HOST in ${HOSTLIST[@]}; do
+			host_send_file ${HOST} ${ARG_SCRIPT_NAME} ${HOST}-${ARG_SCRIPT_NAME}
+			host_exec_cmd ${HOST} "mysql -u${MYSQL_USER} -p${MYSQL_PASS} ${MYSQL_DB} < ${HOST}-${ARG_SCRIPT_NAME}; rm ${HOST}-${ARG_SCRIPT_NAME}"
+		done
+		;;
+
 	script)
 		ARG_SCRIPT_NAME=$2
 		if [ -z $ARG_SCRIPT_NAME ]; then
@@ -273,6 +290,8 @@ case "$ACTION" in
 		echo "    db-transfer table1,table2 srchost dsthost1,dsthost2"
 		echo "                          : Copy table(s) from srchost to desthost(s)"
 		echo "    db-sql <filename>     : Copy <filename> to hosts and run with mysql client"
+		echo "    lang-add <prefix> <key>"
+		echo "                          : Add a language string"
 		echo "    script <filename>     : Copy <filename> to hosts and execute it"
 		echo "    update                : Update code using git pull"
 		echo " "