diff --git a/src/wp-includes/js/customize-base.js b/src/wp-includes/js/customize-base.js
index 6ea282292a..5ffa924564 100644
--- a/src/wp-includes/js/customize-base.js
+++ b/src/wp-includes/js/customize-base.js
@@ -426,10 +426,14 @@ window.wp = window.wp || {};
 
 				if ( this.element.is('input') ) {
 					type = this.element.prop('type');
-					if ( api.Element.synchronizer[ type ] )
+					if ( api.Element.synchronizer[ type ] ) {
 						synchronizer = api.Element.synchronizer[ type ];
-					if ( 'text' === type || 'password' === type )
+					}
+					if ( 'text' === type || 'password' === type ) {
 						this.events += ' keyup';
+					} else if ( 'range' === type ) {
+						this.events += ' input propertychange';
+					}
 				} else if ( this.element.is('textarea') ) {
 					this.events += ' keyup';
 				}