diff --git a/wp-includes/class-wp-customize-setting.php b/wp-includes/class-wp-customize-setting.php
index 62a34f1602..145cf9daea 100644
--- a/wp-includes/class-wp-customize-setting.php
+++ b/wp-includes/class-wp-customize-setting.php
@@ -384,7 +384,7 @@ class WP_Customize_Filter_Setting extends WP_Customize_Setting {
 	/**
 	 * @since 3.4.0
 	 */
-	public function update() {}
+	public function update( $value ) {}
 }
 
 /**