diff --git a/types/babel-core/babel-core-tests.ts b/types/babel-core/babel-core-tests.ts
index b3839d151f..da87d891ba 100644
--- a/types/babel-core/babel-core-tests.ts
+++ b/types/babel-core/babel-core-tests.ts
@@ -1,13 +1,15 @@
 import * as babel from "babel-core";
 
-// Example from https://github.com/babel/babel/tree/master/packages/babel-core
+// Slightly modified example from https://github.com/babel/babel/tree/master/packages/babel-core
 const code = `class Example {}`;
 const result = babel.transform(code, { /* options */ });
 result.code; // Generated code
 result.map; // Sourcemap
 result.ast; // AST
+result.ignored;
+result.metadata;
 
-// Examples from http://babeljs.io/docs/usage/api/
+// Slightly modified examples from http://babeljs.io/docs/usage/api/
 const options: babel.TransformOptions = {
     plugins: [
         "es2015-arrow-functions",
@@ -24,6 +26,8 @@ babel.transformFile("filename.js", options, (err, result) => {
     result.code;
     result.map;
     result.ast;
+    result.ignored;
+    result.metadata;
 });
 
 babel.transformFileSync("filename.js", options).code;
diff --git a/types/babel-core/index.d.ts b/types/babel-core/index.d.ts
index 3a41d2d252..de09b2a91f 100644
--- a/types/babel-core/index.d.ts
+++ b/types/babel-core/index.d.ts
@@ -169,9 +169,30 @@ export interface TransformOptions {
     wrapPluginVisitorMethod?(pluginAlias: string, visitorType: 'enter' | 'exit', callback: (path: NodePath, state: any) => void): (path: NodePath, state: any) => void ;
 }
 
+export interface BabelFileModulesMetadata {
+    imports: object[];
+    exports: {
+        exported: object[],
+        specifiers: object[]
+    };
+}
+
+export interface BabelFileMetadata {
+    usedHelpers: string[];
+    marked: Array<{
+        type: string;
+        message: string;
+        loc: object;
+    }>;
+    modules: BabelFileModulesMetadata;
+}
+
 export interface BabelFileResult {
     ast?: Node;
     code?: string;
+    ignored?: boolean;
     map?: object;
+    metadata?: BabelFileMetadata;
 }
+
 export as namespace babel;