--- a/plugins/mod_admin_telnet.lua	Fri Jul 28 23:47:38 2017 +0100
+++ b/plugins/mod_admin_telnet.lua	Mon Aug 28 21:05:12 2017 +0200
@@ -1067,7 +1067,7 @@
 	elseif not um.user_exists(username, host) then
 		return nil, "No such user";
 	end
-	local ok, err = um.set_password(username, password, host);
+	local ok, err = um.set_password(username, password, host, nil);
 	if ok then
 		return true, "User password changed";
 	else