diff --git a/src/applications/people/customfield/PhabricatorUserStatusField.php b/src/applications/people/customfield/PhabricatorUserStatusField.php
index 0b624706e0..5ea28c84d0 100644
--- a/src/applications/people/customfield/PhabricatorUserStatusField.php
+++ b/src/applications/people/customfield/PhabricatorUserStatusField.php
@@ -1,39 +1,44 @@
 <?php
 
 final class PhabricatorUserStatusField
   extends PhabricatorUserCustomField {
 
   private $value;
 
   public function getFieldKey() {
     return 'user:status';
   }
 
   public function getFieldName() {
     return pht('Status');
   }
 
   public function getFieldDescription() {
     return pht('Shows when a user is away or busy.');
   }
 
   public function shouldAppearInPropertyView() {
     return true;
   }
 
+  public function isFieldEnabled() {
+    return PhabricatorApplication::isClassInstalled(
+      'PhabricatorApplicationCalendar');
+  }
+
   public function renderPropertyViewValue(array $handles) {
     $user = $this->getObject();
     $viewer = $this->requireViewer();
 
     $statuses = id(new PhabricatorCalendarEvent())
       ->loadCurrentStatuses(array($user->getPHID()));
     if (!$statuses) {
       return pht('Available');
     }
 
     $status = head($statuses);
 
     return $status->getTerseSummary($viewer);
   }
 
 }