diff --git a/classes/hook_callbacks.php b/classes/hook_callbacks.php
index 2d7e215..b336981 100644
--- a/classes/hook_callbacks.php
+++ b/classes/hook_callbacks.php
@@ -57,7 +57,7 @@ public static function before_footer_html_generation(\core\hook\output\before_fo
     /**
      * Runs after config has been set.
      *
-     * @param \core\hook\before_http_headers $hook
+     * @param \core\hook\after_config $hook
      * @return void|null
      */
     public static function after_config(\core\hook\after_config $hook) {