--- a/client/src/components/NotesList.js	Thu Jun 01 19:01:03 2017 +0200
+++ b/client/src/components/NotesList.js	Tue Jun 06 15:56:41 2017 +0200
@@ -3,7 +3,7 @@
 import PropTypes from 'prop-types';
 import Immutable from 'immutable';
 
-import { ListGroup, ListGroupItem, Alert } from 'react-bootstrap';
+import { Alert } from 'react-bootstrap';
 
 import Note from './Note';
 
@@ -18,7 +18,7 @@
   return (
     <div>
       {notes.map((note) =>
-        <Note note={note} />
+        <Note note={note} key={note.id} />
       )}
     </div>
   );