diff --git a/sounds/staccato/marimba-variation-v2-e-001.mp3 b/sounds/staccato/marimba-variation-v2-e-001.mp3
index a10b4eef..838537da 100644
Binary files a/sounds/staccato/marimba-variation-v2-e-001.mp3 and b/sounds/staccato/marimba-variation-v2-e-001.mp3 differ
diff --git a/sounds/staccato/marimba-variation-v2-e-001_mp3.js b/sounds/staccato/marimba-variation-v2-e-001_mp3.js
index 3946ad7b..13397bdf 100644
--- a/sounds/staccato/marimba-variation-v2-e-001_mp3.js
+++ b/sounds/staccato/marimba-variation-v2-e-001_mp3.js
@@ -4,7 +4,7 @@ import base64SoundToByteArray from '../../../tambo/js/base64SoundToByteArray.js'
 import WrappedAudioBuffer from '../../../tambo/js/WrappedAudioBuffer.js';
 import phetAudioContext from '../../../tambo/js/phetAudioContext.js';
 
-const soundURI = 'data:audio/mpeg;base64,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';
+const soundURI = 'data:audio/mpeg;base64,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';
 const soundByteArray = base64SoundToByteArray( phetAudioContext, soundURI );
 const unlock = simLauncher.createLock( soundURI );
 const wrappedAudioBuffer = new WrappedAudioBuffer();