diff --git a/src/applications/differential/controller/DifferentialRevisionViewController.php b/src/applications/differential/controller/DifferentialRevisionViewController.php
index ace42559e3..79b9bd7afb 100644
--- a/src/applications/differential/controller/DifferentialRevisionViewController.php
+++ b/src/applications/differential/controller/DifferentialRevisionViewController.php
@@ -770,7 +770,7 @@ final class DifferentialRevisionViewController
       id(new PhabricatorActionView())
         ->setIcon('fa-download')
         ->setName(pht('Download Raw Diff'))
-        ->setHref('raw_diff/D' . $revision_id . '.' . $diff_id  . '.diff'));
+        ->setHref('raw_diff/D' . $revision_id . '.id' . $diff_id  . '.diff'));
 
     $relationship_list = PhabricatorObjectRelationshipList::newForObject(
       $viewer,