diff --git a/libraries/src/User/UserHelper.php b/libraries/src/User/UserHelper.php
index f4450fc59acfa..a000478ae5f41 100644
--- a/libraries/src/User/UserHelper.php
+++ b/libraries/src/User/UserHelper.php
@@ -43,23 +43,22 @@ public static function addUserToGroup($userId, $groupId)
 		// Add the user to the group if necessary.
 		if (!in_array($groupId, $user->groups))
 		{
-			// Get the title of the group.
+			// Check whether the group exists.
 			$db = \JFactory::getDbo();
 			$query = $db->getQuery(true)
-				->select($db->quoteName('title'))
+				->select($db->quoteName('id'))
 				->from($db->quoteName('#__usergroups'))
 				->where($db->quoteName('id') . ' = ' . (int) $groupId);
 			$db->setQuery($query);
-			$title = $db->loadResult();
 
 			// If the group does not exist, return an exception.
-			if (!$title)
+			if ($db->loadResult() === null)
 			{
 				throw new \RuntimeException('Access Usergroup Invalid');
 			}
 
 			// Add the group data to the user object.
-			$user->groups[$title] = $groupId;
+			$user->groups[$groupId] = $groupId;
 
 			// Store the user object.
 			$user->save();