diff --git a/src/applications/differential/storage/DifferentialChangeset.php b/src/applications/differential/storage/DifferentialChangeset.php
index be83c5e73b..9c718a8765 100644
--- a/src/applications/differential/storage/DifferentialChangeset.php
+++ b/src/applications/differential/storage/DifferentialChangeset.php
@@ -170,7 +170,7 @@ final class DifferentialChangeset extends DifferentialDAO
   }
 
   public function getAnchorName() {
-    return substr(md5($this->getFilename()), 0, 8);
+    return 'change-'.PhabricatorHash::digestForIndex($this->getFilename());
   }
 
   public function getAbsoluteRepositoryPath(