diff --git a/stubs/WordPress/class-wp-customize-manager.php b/stubs/WordPress/class-wp-customize-manager.php
index 2925159..7756894 100644
--- a/stubs/WordPress/class-wp-customize-manager.php
+++ b/stubs/WordPress/class-wp-customize-manager.php
@@ -6,6 +6,11 @@
 /**
  */
 class WP_Customize_Manager {
+	/**
+	 * @var WP_Customize_Selective_Refresh
+	 */
+	public $selective_refresh;
+
 	/**
 	 * @param WP_Customize_Control|string $id
 	 * @param array                       $args {
diff --git a/stubs/WordPress/class-wp-customize-partial.php b/stubs/WordPress/class-wp-customize-partial.php
new file mode 100644
index 0000000..b7677ac
--- /dev/null
+++ b/stubs/WordPress/class-wp-customize-partial.php
@@ -0,0 +1,9 @@
+<?php
+/**
+ * @package phan-wordpress-stubs
+ */
+
+/**
+ */
+class WP_Customize_Partial {
+}
diff --git a/stubs/WordPress/class-wp-customize-selective-refresh.php b/stubs/WordPress/class-wp-customize-selective-refresh.php
new file mode 100644
index 0000000..299a385
--- /dev/null
+++ b/stubs/WordPress/class-wp-customize-selective-refresh.php
@@ -0,0 +1,26 @@
+<?php
+/**
+ * @package phan-wordpress-stubs
+ */
+
+/**
+ */
+class WP_Customize_Selective_Refresh {
+	/**
+	 * @param WP_Customize_Partial|string $id
+	 * @param array                       $args {
+	 *     @type string   $type
+	 *     @type string   $selector
+	 *     @type string[] $settings
+	 *     @type string   $primary_setting
+	 *     @type string   $capability
+	 *     @type callable $render_callback
+	 *     @type bool     $container_inclusive
+	 *     @type bool     $fallback_refresh
+	 * }
+	 *
+	 * @return WP_Customize_Partial
+	 */
+	public function add_partial( $id, $args = array() ) {
+	}
+}