diff --git a/IPython/html/tests/widgets/widget_int.js b/IPython/html/tests/widgets/widget_int.js
index 838ab62..0862351 100644
--- a/IPython/html/tests/widgets/widget_int.js
+++ b/IPython/html/tests/widgets/widget_int.js
@@ -162,7 +162,7 @@ casper.notebook_test(function () {
'print("Success")\n');
this.execute_cell_then(index, function(index){
this.test.assertEquals(0, 0, 'Invalid int range max bound does not cause crash.');
- });
+ }, true);
index = this.append_cell(
'a = widgets.IntSlider()\n' +
@@ -171,5 +171,5 @@ casper.notebook_test(function () {
'print("Success")\n');
this.execute_cell_then(index, function(index){
this.test.assertEquals(0, 0, 'Invalid int range min bound does not cause crash.');
- });
+ }, true);
});
\ No newline at end of file