diff --git a/config/func.inc.php b/config/func.inc.php
index 2c81afcd3..5a81b6c01 100644
--- a/config/func.inc.php
+++ b/config/func.inc.php
@@ -208,8 +208,8 @@
      * @param tail 잘라졌을 경우 문자열의 제일 뒤에 붙을 꼬리
      * @return string
      **/
-    function cut_str($string,$cut_size,$tail = '...') { 
-        if(!$string) return $string;
+    function cut_str($string,$cut_size=0,$tail = '...') { 
+        if($cut_size<1 || !$string) return $string;
 
         $char_width = Array(5,10,11,16,14,16,16,10,11,11,12,13,10,13,10,12,13,13,13,13,13,13,13,13,13,13,10,10,14,13,14,13,16,15,15,16,15,15,14,16,15,8,13,15,14,16,16,16,15,16,15,15,14,16,15,16,16,15,15,13,16,13,13,11,10,14,14,14,14,14,10,14,14,8,9,13,8,16,14,15,14,14,10,14,10,14,13,16,14,13,14,14,14,14,16); 
         $unicode_width = 21;