diff --git a/IPython/html/static/widgets/js/widget_int.js b/IPython/html/static/widgets/js/widget_int.js
index fe48e15..d2a4388 100644
--- a/IPython/html/static/widgets/js/widget_int.js
+++ b/IPython/html/static/widgets/js/widget_int.js
@@ -77,6 +77,7 @@ define([
                 this.model.set('value', value, {updated_view: this});
                 this.$slider.slider('option', 'value', value);
                 this.$readout.text(value);
+                this.touch()
 
                 // Use the right CSS classes for vertical & horizontal sliders
                 if (orientation=='vertical') {