diff --git a/src/babel/transformation/modules/ignore.js b/src/babel/transformation/modules/ignore.js
index 5876c08eb1..e60f1102e5 100644
--- a/src/babel/transformation/modules/ignore.js
+++ b/src/babel/transformation/modules/ignore.js
@@ -1,6 +1,7 @@
+import DefaultFormatter from "./_default";
 import * as t from "../../types";
 
-export default class IgnoreFormatter {
+export default class IgnoreFormatter extends DefaultFormatter {
   exportDeclaration(node, nodes) {
     var declar = t.toStatement(node.declaration, true);
     if (declar) nodes.push(t.inherits(declar, node));