diff --git a/extend/shop.extend.php b/extend/shop.extend.php
index 8f04f41fb..274c6f9a7 100644
--- a/extend/shop.extend.php
+++ b/extend/shop.extend.php
@@ -4,6 +4,7 @@ if (!defined("_GNUBOARD_")) exit; // 개별 페이지 접근 불가
 if (!defined('G4_USE_SHOP') || !G4_USE_SHOP) return;
 
 include_once(G4_LIB_PATH.'/shop.lib.php');
+include_once(G4_LIB_PATH.'/thumbnail.lib.php');
 
 //------------------------------------------------------------------------------
 // 쇼핑몰 상수 모음 시작
diff --git a/lib/shop.lib.php b/lib/shop.lib.php
index fd64105b7..2cf132c06 100644
--- a/lib/shop.lib.php
+++ b/lib/shop.lib.php
@@ -1,6 +1,4 @@
 <?php
-include_once(G4_LIB_PATH.'/thumbnail.lib.php');
-
 //==============================================================================
 // 쇼핑몰 함수 모음 시작
 //==============================================================================