diff --git a/lib/thumbnail.lib.php b/lib/thumbnail.lib.php
index c7991dbef..04702a590 100644
--- a/lib/thumbnail.lib.php
+++ b/lib/thumbnail.lib.php
@@ -3,11 +3,6 @@ if (!defined('_GNUBOARD_')) exit;
 
 @ini_set('memory_limit', '512M');
 
-function it_img_thumb($filename, $filepath, $thumb_width, $thumb_height, $is_create=false)
-{
-    return thumbnail($filename, $filepath, $filepath, $thumb_width, $thumb_height, $is_create);
-}
-
 // 게시글리스트 썸네일 생성
 function get_list_thumbnail($bo_table, $wr_id, $thumb_width, $thumb_height, $is_create=false, $is_crop=true, $crop_mode='center', $is_sharpen=true, $um_value='80/0.5/3')
 {