diff --git a/includes/model/class-application-user.php b/includes/model/class-application-user.php
index 8fb4ee6..1d1d414 100644
--- a/includes/model/class-application-user.php
+++ b/includes/model/class-application-user.php
@@ -29,6 +29,13 @@ class Application_User extends Blog_User {
 	 */
 	protected $discoverable = false;
 
+	/**
+	 * The instance actor by default must manually approve all followers.
+	 * 
+	 * @var boolean
+	 */
+	protected $manually_approves_followers = true;
+
 	/**
 	 * Get the User-Url.
 	 *
@@ -52,7 +59,7 @@ class Application_User extends Blog_User {
 	}
 
 	public function get_preferred_username() {
-		return $this::get_name();
+		return $this->get_name();
 	}
 
 	public function get_followers() {