diff --git a/xC.c b/xC.c
index ecb3c2d..2027a6a 100644
--- a/xC.c
+++ b/xC.c
@@ -13581,16 +13581,17 @@ static void
 complete_nicknames (struct buffer *buffer, struct completion *data,
 	const char *word, struct strv *output)
 {
+	size_t word_len = strlen (word);
 	if (buffer->type == BUFFER_SERVER)
 	{
 		struct user *self_user = buffer->server->irc_user;
-		if (self_user)
+		if (self_user && !irc_server_strncmp (buffer->server,
+				word, self_user->nickname, word_len))
 			strv_append (output, self_user->nickname);
 	}
 	if (buffer->type != BUFFER_CHANNEL)
 		return;
 
-	size_t word_len = strlen (word);
 	LIST_FOR_EACH (struct channel_user, iter, buffer->channel->users)
 	{
 		const char *nickname = iter->user->nickname;