diff --git a/spectrum/src/frontends/slack/SlackSession.cpp b/spectrum/src/frontends/slack/SlackSession.cpp
index 1b2d59294e962dafad5bbd93f1ab301d4621d2bd..e1a151de9e4b4ac6011544fd86acf77aca32ae48 100644
--- a/spectrum/src/frontends/slack/SlackSession.cpp
+++ b/spectrum/src/frontends/slack/SlackSession.cpp
@@ -427,9 +427,9 @@ void SlackSession::handleMessageReceived(const std::string &channel, const std::
 		msg += "```.spectrum2 register <3rdPartyNetworkAccount> <3rdPartyPassword> <#SlackChannel>``` Registers 3rd-party account for transportation.";
 		m_rtm->sendMessage(m_ownerChannel, msg);
 	}
-	else {
-		m_rtm->sendMessage(m_ownerChannel, "Unknown command. Use `.spectrum2 help` for help.");
-	}
+// 	else {
+// 		m_rtm->sendMessage(m_ownerChannel, "Unknown command. Use `.spectrum2 help` for help.");
+// 	}
 }
 
 void SlackSession::handleDisconnected() {