diff --git a/common.php b/common.php
index 37d8abf89..ce258eb7b 100644
--- a/common.php
+++ b/common.php
@@ -119,7 +119,7 @@ div a {display:block;margin:50px auto 10px;width:170px;text-align:center}
             <li><strong><?php echo G4_DATA_DIR.'/'.G4_DBCONFIG_FILE ?></strong></li>
         </ul>
         <p>프로그램 설치 후 실행하시기 바랍니다.</p>
-        <a href="./install/">그누보드4s 설치하기</a>
+        <a href="<?php echo G4_URL; ?>/install/">그누보드4s 설치하기</a>
     </div>
 </body>
 </html>