diff --git a/src/sound/webaudio/WebAudioSound.js b/src/sound/webaudio/WebAudioSound.js
index 57b80cf48..d3e59bdf5 100644
--- a/src/sound/webaudio/WebAudioSound.js
+++ b/src/sound/webaudio/WebAudioSound.js
@@ -55,6 +55,7 @@ var WebAudioSound = new Class({
          *
          * @name Phaser.Sound.WebAudioSound#source
          * @type {AudioBufferSourceNode}
+         * @private
          * @default null
          * @since 3.0.0
          */