diff --git a/js/Scratch.js b/js/Scratch.js
index 653796f..1f6cbd9 100644
--- a/js/Scratch.js
+++ b/js/Scratch.js
@@ -113,7 +113,7 @@ function Scratch(project_id) {
             var isource = runtime.audioContext.createBufferSource();
             isource.buffer = ibuffer;
             isource.connect(runtime.audioContext.destination);
-            isource.noteOn(0);
+            isource.start();
             iosAudioActive = true;
         }
     });