diff --git a/src/openseadragon.js b/src/openseadragon.js
index 01cfc864..d7362ae2 100644
--- a/src/openseadragon.js
+++ b/src/openseadragon.js
@@ -195,8 +195,9 @@
   *
   * @property {String} [compositeOperation=null]
   *     Valid values are 'source-over', 'source-atop', 'source-in', 'source-out',
-  *     'destination-over', 'destination-atop', 'destination-in',
-  *     'destination-out', 'lighter', 'copy' or 'xor'
+  *     'destination-over', 'destination-atop', 'destination-in', 'destination-out',
+  *     'lighter', 'difference', 'copy', 'xor', etc.
+  *     For complete list of modes, please @see {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/globalCompositeOperation/ globalCompositeOperation}
   *
   * @property {Boolean} [imageSmoothingEnabled=true]
   *     Image smoothing for canvas rendering (only if canvas is used). Note: Ignored