diff --git a/lib/hash.js b/lib/hash.js
index 1249420..8d7d3fd 100644
--- a/lib/hash.js
+++ b/lib/hash.js
@@ -9,9 +9,9 @@ import { readFile } from 'fs-promise';
  */
 
 export default async function hashes (files) {
-  const entries = await Promise.all(files.map(async (file) => {
-    const data = await readFile(file);
-    return [hash(data), file];
+  const entries = await Promise.all(files.map(async (name) => {
+    const data = await readFile(name);
+    return [hash(data), { name, data }];
   }));
   return new Map(entries);
 }