diff --git a/app/assets/javascripts/discourse/controllers/flag_controller.js b/app/assets/javascripts/discourse/controllers/flag_controller.js
index 1284e8479..a573161bb 100644
--- a/app/assets/javascripts/discourse/controllers/flag_controller.js
+++ b/app/assets/javascripts/discourse/controllers/flag_controller.js
@@ -58,9 +58,11 @@ Discourse.FlagController = Discourse.ObjectController.extend(Discourse.ModalFunc
 
     if (opts) params = $.extend(params, opts);
 
+    $('#discourse-modal').modal('hide');
     postAction.act(params).then(function() {
       flagController.send('closeModal');
     }, function(errors) {
+      $('#discourse-modal').modal('show');
       flagController.displayErrors(errors);
     });
   },