diff --git a/irc/modes/modes.go b/irc/modes/modes.go
index 8751ca1f..5ea0bd1f 100644
--- a/irc/modes/modes.go
+++ b/irc/modes/modes.go
@@ -16,6 +16,7 @@ var (
 	// SupportedUserModes are the user modes that we actually support (modifying).
 	SupportedUserModes = Modes{
 		Bot, Invisible, Operator, RegisteredOnly, ServerNotice, UserRoleplaying,
+		UserNoCTCP,
 	}
 
 	// SupportedChannelModes are the channel modes that we support.