diff --git a/tools/wsndata.php b/tools/wsndata.php
index 44e093b5..032d2f56 100644
--- a/tools/wsndata.php
+++ b/tools/wsndata.php
@@ -107,7 +107,7 @@ ini_set('error_log','/tmp/wsn.log');
 				if($variable==-1)
 				{
 					//获取数据
-					$sql2= "SELECT v.fld_time as time,v.fld_value as value,va.fld_name as variablename FROM tbl_value v left join tbl_variable_info va on v.fld_variable_id=va.fld_variable_id WHERE v.fld_site_id=$site AND v.fld_time>='$start' AND v.fld_time<'$endtime' ORDER BY time ";
+					$sql2= "SELECT v.fld_time as time,v.fld_value as value,va.fld_name as variablename FROM tbl_value v left join tbl_variable_info va on v.fld_variable_id=va.fld_variable_id WHERE v.fld_site_id=$site AND v.fld_time>='$start' AND v.fld_time<'$end' ORDER BY time ";
 					$sth2 = $db->query($sql2);
 					$rows2 = $sth2->fetchAll();
 					$endtime=date("Y-m-d",strtotime($start)+24*3600);