@@ -2,11 +2,11 @@ import * as webpack from 'webpack';
 import { Path } from '@angular-devkit/core';
 import { NormalizedBrowserBuilderSchema } from '@angular-devkit/build-angular';
 
-export type WebpackOptions<T = NormalizedBrowserBuilderSchema> = {
-    root: Path,
-    projectRoot: Path,
+export interface WebpackOptions<T = NormalizedBrowserBuilderSchema> {
+    root: Path;
+    projectRoot: Path;
     options: T;
-};
+}
 
 const command = process.argv[2].toLowerCase();