diff --git a/src/workflow/ArcanistBackoutWorkflow.php b/src/workflow/ArcanistBackoutWorkflow.php
--- a/src/workflow/ArcanistBackoutWorkflow.php
+++ b/src/workflow/ArcanistBackoutWorkflow.php
@@ -123,6 +123,9 @@
     $template = $this->newInteractiveEditor($template)
       ->setName('new-commit')
       ->editInteractively();
+
+    $template = ArcanistCommentRemover::removeComments($template);
+
     return $template;
   }