diff --git a/tools/migration/reply_to-to-reply.js b/tools/migration/reply_to-to-reply.js
new file mode 100644
index 000000000..ceb272ebc
--- /dev/null
+++ b/tools/migration/reply_to-to-reply.js
@@ -0,0 +1,5 @@
+db.posts.update({}, {
+	$rename: {
+		reply_to_id: 'reply_id'
+	}
+}, false, true);