diff --git a/module/install/control.php b/module/install/control.php
index b28e843132..40735c3cf4 100644
--- a/module/install/control.php
+++ b/module/install/control.php
@@ -130,7 +130,6 @@ class install extends control
             if(dao::isError()) echo js::alert($this->lang->install->errorImportDemoData);
 
             $this->loadModel('setting')->updateVersion($this->config->version);
-            $this->setting->setSN();
 			die(js::locate(inlink('step5'), 'parent'));
         }