diff --git a/lib/utils/import-esm.js b/lib/utils/import-esm.js
index b8d19f12817..498284abfee 100644
--- a/lib/utils/import-esm.js
+++ b/lib/utils/import-esm.js
@@ -1,3 +1,5 @@
+// TODO: Remove after dropping support for Node.js v12
+
 'use strict';
 
 module.exports = async (modPath) => import(`file:///${modPath}`);