diff --git a/src/applications/people/phid/PhabricatorPeoplePHIDTypeUser.php b/src/applications/people/phid/PhabricatorPeoplePHIDTypeUser.php
index a4c344c326..5f13d0e9a6 100644
--- a/src/applications/people/phid/PhabricatorPeoplePHIDTypeUser.php
+++ b/src/applications/people/phid/PhabricatorPeoplePHIDTypeUser.php
@@ -1,90 +1,92 @@
 <?php
 
 final class PhabricatorPeoplePHIDTypeUser extends PhabricatorPHIDType {
 
   const TYPECONST = 'USER';
 
   public function getTypeConstant() {
     return self::TYPECONST;
   }
 
   public function getTypeName() {
     return pht('User');
   }
 
   public function getPHIDTypeApplicationClass() {
     return 'PhabricatorApplicationPeople';
   }
 
   public function getTypeIcon() {
     return 'fa-user bluegrey';
   }
 
   public function newObject() {
     return new PhabricatorUser();
   }
 
   protected function buildQueryForObjects(
     PhabricatorObjectQuery $query,
     array $phids) {
 
     return id(new PhabricatorPeopleQuery())
       ->withPHIDs($phids)
       ->needProfileImage(true)
       ->needStatus(true);
   }
 
   public function loadHandles(
     PhabricatorHandleQuery $query,
     array $handles,
     array $objects) {
 
     foreach ($handles as $phid => $handle) {
       $user = $objects[$phid];
       $realname = $user->getRealName();
 
       $handle->setName($user->getUsername());
       $handle->setURI('/p/'.$user->getUsername().'/');
       $handle->setFullName($user->getFullName());
       $handle->setImageURI($user->loadProfileImageURI());
       $handle->setDisabled(!$user->isUserActivated());
       if ($user->hasStatus()) {
         $status = $user->getStatus();
         $handle->setStatus($status->getTextStatus());
         $handle->setTitle($status->getTerseSummary($query->getViewer()));
       }
     }
 
   }
 
   public function canLoadNamedObject($name) {
     return preg_match('/^@.+/', $name);
   }
 
   public function loadNamedObjects(
     PhabricatorObjectQuery $query,
     array $names) {
 
     $id_map = array();
     foreach ($names as $name) {
       $id = substr($name, 1);
+      $id = phutil_utf8_strtolower($id);
       $id_map[$id][] = $name;
     }
 
     $objects = id(new PhabricatorPeopleQuery())
       ->setViewer($query->getViewer())
       ->withUsernames(array_keys($id_map))
       ->execute();
 
     $results = array();
     foreach ($objects as $id => $object) {
-      $username = $object->getUsername();
-      foreach (idx($id_map, $username, array()) as $name) {
+      $user_key = $object->getUsername();
+      $user_key = phutil_utf8_strtolower($user_key);
+      foreach (idx($id_map, $user_key, array()) as $name) {
         $results[$name] = $object;
       }
     }
 
     return $results;
   }
 
 }