diff --git a/src/applications/phurl/editor/PhabricatorPhurlURLEditor.php b/src/applications/phurl/editor/PhabricatorPhurlURLEditor.php
index 3ddfb8bdf7..e7a3c7394b 100644
--- a/src/applications/phurl/editor/PhabricatorPhurlURLEditor.php
+++ b/src/applications/phurl/editor/PhabricatorPhurlURLEditor.php
@@ -49,9 +49,13 @@ final class PhabricatorPhurlURLEditor
     switch ($xaction->getTransactionType()) {
       case PhabricatorPhurlURLTransaction::TYPE_NAME:
       case PhabricatorPhurlURLTransaction::TYPE_URL:
-      case PhabricatorPhurlURLTransaction::TYPE_ALIAS:
       case PhabricatorPhurlURLTransaction::TYPE_DESCRIPTION:
         return $xaction->getNewValue();
+      case PhabricatorPhurlURLTransaction::TYPE_ALIAS:
+        if (!strlen($xaction->getNewValue())) {
+          return null;
+        }
+        return $xaction->getNewValue();
     }
 
     return parent::getCustomTransactionNewValue($object, $xaction);