wp.customize.controlConstructor['kirki-toggle'] = wp.customize.kirkiDynamicControl.extend({ initKirkiControl: function() { var control = this, checkboxValue = control.setting._value; // Save the value this.container.on( 'change', 'input', function() { checkboxValue = ( jQuery( this ).is( ':checked' ) ) ? true : false; control.setting.set( checkboxValue ); }); } });