diff --git a/kike.c b/kike.c
index 1ec9099..c135ba9 100644
--- a/kike.c
+++ b/kike.c
@@ -1780,7 +1780,7 @@ static bool
 mode_processor_do_chan (struct mode_processor *self, int mode)
 {
 	if (!mode_processor_check_operator (self)
-	 || irc_modify_mode (&self->channel->modes, mode, self->adding))
+	 || !irc_modify_mode (&self->channel->modes, mode, self->adding))
 		return false;
 
 	str_append_c (self->output, self->mode_char);