diff --git a/README.md b/README.md
index e879d22..aa361c2 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,8 @@
 # Image Server
 
 Remaining:
-- parameterize bucket for test server
 - try American Cloud
 - dockerize
-- add file extension
 - images.timesafari.app
 
 - pretty-up the client, show thumbnail
diff --git a/server.js b/server.js
index 52f5e69..95b2d02 100644
--- a/server.js
+++ b/server.js
@@ -147,7 +147,7 @@ app.post('/image', uploadMulter.single('image'), async (req, res) => {
       hashSum.update(data);
       const hashHex = hashSum.digest('hex');
 
-      const fileName = hashHex;
+      const fileName = hashHex + path.extname(reqFile.originalname);
 
       try {