diff --git a/upload/source/module/forum/forum_viewthread.php b/upload/source/module/forum/forum_viewthread.php
index c5a7480d15a029b7f10461bf60da421361befa36..a773001a58fbdd0c4236e399ee797294ac9323b8 100644
--- a/upload/source/module/forum/forum_viewthread.php
+++ b/upload/source/module/forum/forum_viewthread.php
@@ -178,7 +178,7 @@ if(empty($_G['forum']['allowview'])) {
 	if(!$_G['forum']['viewperm'] && !$_G['group']['readaccess']) {
 		showmessage('group_nopermission', NULL, array('grouptitle' => $_G['group']['grouptitle']), array('login' => 1));
 	} elseif($_G['forum']['viewperm'] && !forumperm($_G['forum']['viewperm'])) {
-		showmessagenoperm('viewperm', $_G['fid']);
+		showmessagenoperm('viewperm', $_G['fid'], $_G['forum']['formulaperm']);
 	}
 
 } elseif($_G['forum']['allowview'] == -1) {