diff --git a/main/admin/user_fields_options.php b/main/admin/user_fields_options.php
index cf93cbba1e..2f71d6dcc4 100644
--- a/main/admin/user_fields_options.php
+++ b/main/admin/user_fields_options.php
@@ -141,7 +141,7 @@ function get_options_data($from, $number_of_items, $column, $direction)
 	return $return;	
 }
 
-function get_number_of_options($from, $number_of_items, $column, $direction)
+function get_number_of_options($from=null, $number_of_items=null, $column=null, $direction=null)
 {
 	// Database table definition
 	$table_userfields_options 	= Database :: get_main_table(TABLE_MAIN_USER_FIELD_OPTIONS);