diff --git a/application/models/User_model.php b/application/models/User_model.php
index 7c5ac6806..114ed3458 100644
--- a/application/models/User_model.php
+++ b/application/models/User_model.php
@@ -213,7 +213,8 @@ class User_Model extends CI_Model {
 	// FUNCTION: bool add($username, $password, $email, $type)
 	// Add a user
 	// !!!!!!!!!!!!!!!!
-	// !! IMPORTANT NOTICE: Please inform DJ7NT and/or DF2ET when adding/removing/changing parameters here.
+	// !! IMPORTANT NOTICE: Please inform DJ7NT and/or DF2ET when adding/removing/changing parameters here. 
+	// !! Also make sure you modify Header_auth::_create_user accordingly, otherwise SSO user creation will break.
 	// !!!!!!!!!!!!!!!!
 	function add($username, $password, $email, $type, $firstname, $lastname, $callsign, $locator, $timezone,
 		$measurement, $dashboard_map, $user_date_format, $user_stylesheet, $user_qth_lookup, $user_sota_lookup, $user_wwff_lookup,