diff --git a/includes/admin/class-addon-activation-banner.php b/includes/admin/class-addon-activation-banner.php
index bffcfaa853..cefb35ac00 100644
--- a/includes/admin/class-addon-activation-banner.php
+++ b/includes/admin/class-addon-activation-banner.php
@@ -16,11 +16,17 @@
 /**
  * Class Give_Addon_Activation_Banner
  *
+ * @unreleased added $user_id property to class
  * @since  2.1.0 Added pleasing interface when multiple add-ons are activated.
  */
 class Give_Addon_Activation_Banner {
+    /**
+     * @unreleased
+     * @var int
+     */
+    protected $user_id;
 
-	/**
+    /**
 	 * Class constructor.
 	 *
 	 * @since  1.0