diff --git a/src/applications/notification/config/PhabricatorNotificationServersConfigType.php b/src/applications/notification/config/PhabricatorNotificationServersConfigType.php
index f13105a249..8fbac5806c 100644
--- a/src/applications/notification/config/PhabricatorNotificationServersConfigType.php
+++ b/src/applications/notification/config/PhabricatorNotificationServersConfigType.php
@@ -92,7 +92,7 @@ final class PhabricatorNotificationServersConfigType
       }
 
       $path = idx($spec, 'path');
-      if ($type == 'admin' && strlen($path)) {
+      if ($type == 'admin' && phutil_nonempty_string($path)) {
         throw $this->newException(
           pht(
             'Notification server configuration describes an invalid host '.