diff --git a/src/aphront/handler/AphrontRequestExceptionHandler.php b/src/aphront/handler/AphrontRequestExceptionHandler.php
index 6f5a23ae05..4df9f19c81 100644
--- a/src/aphront/handler/AphrontRequestExceptionHandler.php
+++ b/src/aphront/handler/AphrontRequestExceptionHandler.php
@@ -10,6 +10,8 @@
  */
 abstract class AphrontRequestExceptionHandler extends Phobject {
 
+  abstract public function getRequestExceptionHandlerDescription();
+
   abstract public function getRequestExceptionHandlerPriority();
 
   abstract public function canHandleRequestThrowable(