diff --git a/src/errors.js b/src/errors.js
index <HASH>..<HASH> 100644
--- a/src/errors.js
+++ b/src/errors.js
@@ -12,6 +12,7 @@ export class SassDocError extends Error {
 export class Warning extends SassDocError {
   constructor(message) {
     super(message);
+    this.message = message; // rm when native class support.
   }
 
   get name() {
Bring back property inheritance workaround
- Introduced with the Babel <I>.* upgrade