diff --git a/src/main/ui/static/dashboard/dashboard.js b/src/main/ui/static/dashboard/dashboard.js
index e67fa4e6b..add62a4e6 100644
--- a/src/main/ui/static/dashboard/dashboard.js
+++ b/src/main/ui/static/dashboard/dashboard.js
@@ -78,8 +78,8 @@ define(['angular', 'uiRouter', 'jstz', 'uiBootstrap', 'angularEcharts'], functio
                     var end = $filter('date')(date-oneDay, 'yyyyMMdd');
 
                     var date2 = new Date();
+                    date2.setDate(1);
                     date2.setMonth(date2.getMonth() - 1);
-                    date2 = date2.setDate(1);
                     var begin = $filter('date')(date2, 'yyyyMMdd');
                     return {
                         begin: begin,