diff --git a/samples/sandbox/src/index.html b/samples/sandbox/src/index.html
index 9b48060..ae0b947 100644
--- a/samples/sandbox/src/index.html
+++ b/samples/sandbox/src/index.html
@@ -6,7 +6,7 @@
   </head>
   <body>
     <div id="main">
-      If you see this then something is wrongly.
+      If you see this then something is wrong.
     </div>
     <script src='sample.js'></script>
   </body>
