diff --git a/panel/action.js b/panel/action.js
index 3121fd57..c2c4ffa4 100644
--- a/panel/action.js
+++ b/panel/action.js
@@ -53,7 +53,7 @@ Volcanos("onimport", {help: "导入数据", list: [], _init: function(can, msg)
 	}) },
 	_cmd: function(can, item, next) {
 		can.base.Copy(item, {
-			height: can.Conf(html.HEIGHT)-can.Conf(html.MARGIN_Y),
+			height: can.Conf(html.HEIGHT)-can.Conf(html.MARGIN_Y)+(can.user.isWindows? 17: 0),
 			width: can.Conf(html.WIDTH)-can.Conf(html.MARGIN_X),
 			opts: can.misc.Search(can),
 		})