diff --git a/scripts/bake/bake_differential.php b/scripts/bake/bake_differential.php
index 1fbc5e128e..7b3021444d 100644
--- a/scripts/bake/bake_differential.php
+++ b/scripts/bake/bake_differential.php
@@ -294,6 +294,7 @@ print('Querying differential revisions from the database ... ' . "\n");
 $revisions = id(new DifferentialRevisionQuery())
   ->setViewer($viewer)
   ->needDiffIDs(true)
+  ->setOrder('oldest')
   ->execute();
 
 foreach ($revisions as $revision_id => $revision) {