diff --git a/phpBB/index.php b/phpBB/index.php
index 6b63ee40f8..6854545463 100644
--- a/phpBB/index.php
+++ b/phpBB/index.php
@@ -165,7 +165,7 @@ if($total_categories = $db->sql_numrows($q_categories))
 						)
 						$limit_forums
 					)
-					ORDER BY f.cat_id, f.forum_order";
+					ORDER BY cat_id, forum_order";
 			break;
 
 		case 'oracle':