diff --git a/sensehat/index.html b/sensehat/index.html
index c7b6c64..ba7a7fe 100644
--- a/sensehat/index.html
+++ b/sensehat/index.html
@@ -128,13 +128,13 @@
         </div>
     </div>
 
-    <button onclick="client.emit('operation', {action:'clear'})">clear</button>
+    <button onclick="client.emit('action', {action:'clear'})">clear</button>
     <br>
-    <button onclick="client.emit('operation', {action:'hello'})">hello</button>
+    <button onclick="client.emit('action', {action:'flash'})">flash</button>
     <br>
-    <button onclick="client.emit('operation', {action:'flash'})">flash</button>
+    <button onclick="client.emit('action', {action:'hello'})">hello</button>
     <br>
-    <button onclick="client.emit('operation', {action:'temp'})">temp</button>
+    <button onclick="client.emit('action', {action:'temp'})">temp</button>
     <div id="rpis"></div>
 
     <script src="http://pi/sensehat/socket.io/socket.io.js"></script>