diff --git a/index.html b/index.html
index f980b6b..52c5081 100644
--- a/index.html
+++ b/index.html
@@ -10,7 +10,7 @@
 </head>
 
 <body>
-    <form action="/image" method="post">
+    <form enctype="multipart/form-data" action="/image" method="post">
         <textarea name="text" cols="30" rows="3"></textarea>
         <input name="image" type="file">
         <input type="submit" value="submit">
