diff --git a/src/applications/policy/storage/PhabricatorPolicy.php b/src/applications/policy/storage/PhabricatorPolicy.php
--- a/src/applications/policy/storage/PhabricatorPolicy.php
+++ b/src/applications/policy/storage/PhabricatorPolicy.php
@@ -484,6 +484,9 @@
       if (method_exists($object, 'describeAutomaticCapability')) {
         $exceptions = (array)$object->describeAutomaticCapability($capability);
         $exceptions = array_filter($exceptions);
+        $exceptions = array_map(function ($item) {
+          return $item.' ';
+        }, $exceptions);
       }
     }