diff --git a/application/admin/controllers/DataController.php b/application/admin/controllers/DataController.php
index 2f074e51..38c8b765 100755
--- a/application/admin/controllers/DataController.php
+++ b/application/admin/controllers/DataController.php
@@ -139,7 +139,7 @@ class Admin_DataController extends Zend_Controller_Action
     		}
     		$this->view->msg='已成功同步缩略图！';
     	} elseif ($thumb=='water') {
-    		$sql="select g.id as gid,m.uuid,t.* from heihegn g left join metadata m on m.uuid=g.uuid left join thumbnail t on t.id=m.id where t.filetype is not null and t.filename is not null";
+    		$sql="select g.id as gid,m.uuid,t.* from watergn g left join metadata m on m.uuid=g.uuid left join thumbnail t on t.id=m.id where t.filetype is not null and t.filename is not null";
     		$rows=$this->db->fetchAll($sql);
     		foreach($rows as $row) {
     			$data=file_get_contents($this->view->config->watergeonetwork->url.'srv/cn/resources.get?access=public&id='.$row->gid.'&fname='.urlencode($row->filename));