diff --git a/src/infrastructure/events/PhabricatorEventEngine.php b/src/infrastructure/events/PhabricatorEventEngine.php
index 2f14a2d1e7..8d49752d61 100644
--- a/src/infrastructure/events/PhabricatorEventEngine.php
+++ b/src/infrastructure/events/PhabricatorEventEngine.php
@@ -1,28 +1,35 @@
 <?php
 
 /**
  * @group events
  */
 final class PhabricatorEventEngine {
 
   public static function initialize() {
     $listeners = PhabricatorEnv::getEnvConfig('events.listeners');
     foreach ($listeners as $listener) {
-      id(new $listener())->register();
+      try {
+        id(new $listener())->register();
+      } catch (Exception $ex) {
+        // If the listener does not exist, or throws when registering, just
+        // log it and continue. In particular, this is important to let you
+        // run `bin/config` in order to remove an invalid listener.
+        phlog($ex);
+      }
     }
 
     // Register the DarkConosole event logger.
     id(new DarkConsoleEventPluginAPI())->register();
     id(new ManiphestEdgeEventListener())->register();
 
     $applications = PhabricatorApplication::getAllInstalledApplications();
     foreach ($applications as $application) {
       $listeners = $application->getEventListeners();
       foreach ($listeners as $listener) {
         $listener->register();
       }
     }
 
   }
 
 }