diff --git a/backends/twitter/Requests/HelpMessageRequest.cpp b/backends/twitter/Requests/HelpMessageRequest.cpp
index 87250d16..53ee3692 100644
--- a/backends/twitter/Requests/HelpMessageRequest.cpp
+++ b/backends/twitter/Requests/HelpMessageRequest.cpp
@@ -10,6 +10,7 @@ void HelpMessageRequest::run()
 			+ "#retweet <unique_tweet_id> ==> Retweet the tweet having id <unique_tweet_id> \n"
 			+ "#follow <username>         ==> Follow user <username>\n"
 			+ "#unfollow <username>       ==> Stop Following user <username>\n"
+			+ "#mode [012]                ==> Switch mode to 0(single), 1(multiple) or 2(chatroom)\n"
 			+ "#help                      ==> Print this help message\n"
 			+ "************************************************************************\n";
 }