diff --git a/src/infrastructure/celerity/map/CelerityResourceMap.php b/src/infrastructure/celerity/map/CelerityResourceMap.php
index 8e02226fb3..2dc0be4465 100644
--- a/src/infrastructure/celerity/map/CelerityResourceMap.php
+++ b/src/infrastructure/celerity/map/CelerityResourceMap.php
@@ -27,7 +27,7 @@ final class CelerityResourceMap {
     if (empty(self::$instance)) {
       self::$instance = new CelerityResourceMap();
       $root = phutil_get_library_root('phabricator');
-      $ok = @include_once $root.'/__celerity_resource_map__.php';
+      $ok = include_once $root.'/__celerity_resource_map__.php';
       if (!$ok) {
         throw new Exception("Failed to load Celerity resource map!");
       }