diff --git a/static/admin/tools.js b/static/admin/tools.js
index 4aeb5b8..67a16d8 100644
--- a/static/admin/tools.js
+++ b/static/admin/tools.js
@@ -75,8 +75,8 @@ function loadDiscovery(){
           :'<span class="label label-warning">离线</span>';
         return '<tr><td style="font-family:monospace">'+esc(x.serial)+'</td>'
           +'<td>'+src+'</td><td>'+esc(x.first_seen)+'</td><td>'+esc(x.last_seen)+'</td><td>'+onl+'</td>'
-          +'<td><button class="btn btn-primary btn-xs" onclick="confirmDiscoveryDev(''+esc(x.serial)+'')">确认添加</button> '
-          +'<button class="btn btn-xs" onclick="ignoreDiscoveryDev(''+esc(x.serial)+'')">忽略</button></td></tr>';
+          +'<td><button class="btn btn-primary btn-xs" data-serial="'+esc(x.serial)+'" onclick="confirmDiscoveryDev(this.dataset.serial)">确认添加</button> '
+          +'<button class="btn btn-xs" data-serial="'+esc(x.serial)+'" onclick="ignoreDiscoveryDev(this.dataset.serial)">忽略</button></td></tr>';
       }).join('');
     }
   });