diff --git a/twe/func.php b/twe/func.php
index 1fb50322..1959456a 100644
--- a/twe/func.php
+++ b/twe/func.php
@@ -22,6 +22,8 @@ require_once('func_map.php');
 require_once('func_diplomacy.php');
 require_once('func_command.php');
 
+use utilphp\util as util;
+
 /** 
  * 0.0~1.0 사이의 랜덤 float
  * @return float
diff --git a/twe/lib.php b/twe/lib.php
index d22f7d67..32b79db6 100644
--- a/twe/lib.php
+++ b/twe/lib.php
@@ -300,7 +300,7 @@ function isDict(&$array){
 
 }
 
-function eraseNullValue(&$dict, $depth=512){
+function eraseNullValue($dict, $depth=512){
     //TODO:Test 추가
     if($dict === null){
         return null;