diff --git a/bashbot.sh b/bashbot.sh
index 5c7f090..11d14b4 100755
--- a/bashbot.sh
+++ b/bashbot.sh
@@ -758,8 +758,8 @@ process_message() {
 	if [ -n "${SERVICE[NEWMEMBER]}" ]; then
 		NEWMEMBER[ID]="${SERVICE[NEWMEMBER]}"
 		NEWMEMBER[FIRSTNAME]="${UPD["result",${num},"message","new_chat_member","first_name"]}"
-		NEWMEMBER[LASTNAME]="${UPD["result",${num},"message","new_chat_member","last_name"]}"
-		NEWMEMBER[USERNAME]="${UPD["result",${num},"message","new_chat_member","username"]}"
+		NEWMEMBER[LAST_NAME]="${UPD["result",${num},"message","new_chat_member","last_name"]}"
+		NEWMEMBER[USER_NAME]="${UPD["result",${num},"message","new_chat_member","username"]}"
 		NEWMEMBER[ISBOT]="${UPD["result",${num},"message","new_chat_member","is_bot"]}"
 	fi
 	SERVICE[LEFTMEMBER]="${UPD["result",${num},"message","left_chat_member","id"]}"
diff --git a/doc/2_usage.md b/doc/2_usage.md
index 7b099c8..e6a3b67 100644
--- a/doc/2_usage.md
+++ b/doc/2_usage.md
@@ -155,8 +155,8 @@ Evertime a Message is received, you can read incoming data using the following v
     * ```${SERVICE}```: set to "yes" when a service message is recived.
     * ```${SERVICE[NEWMEMBER]```: New user's id
         * ```${NEWMEMBER[ID]```: New user's id
-        * ```${NEWMEMBER[FIRSTNAME]```: New user's first name
-        * ```${NEWMEMBER[LASTNAME]```: New user's last name
+        * ```${NEWMEMBER[FIRST_NAME]```: New user's first name
+        * ```${NEWMEMBER[LAST_NAME]```: New user's last name
         * ```${NEWMEMBER[USERNAME]```: New user's username
         * ```${NEWMEMBER[ISBOT]```: New user is a bot
     * ```${SERVICE[LEFTMEMBER]```: Id of user left