diff --git a/src/extras/MovieClip.js b/src/extras/MovieClip.js
index 8e412a1..e1bb78d 100644
--- a/src/extras/MovieClip.js
+++ b/src/extras/MovieClip.js
@@ -58,6 +58,7 @@
     /**
      * Elapsed time since animation has been started, used internally to display current texture
      *
+     * @member {number}
      * @private
      */
     this._currentTime = 0;