diff --git a/src/objects/Skeleton.js b/src/objects/Skeleton.js
index 3b3c852124e09fff0e6b664d7f9737fd5e0c0b30..a218f06472fdffa8507fd21fcc3bb65600b5af97 100644
--- a/src/objects/Skeleton.js
+++ b/src/objects/Skeleton.js
@@ -118,7 +118,7 @@ THREE.Skeleton.prototype.addBone = function ( bone ) {
 };
 
 
-THREE.Skeleton.prototype.calculateInverses = function ( bone ) {
+THREE.Skeleton.prototype.calculateInverses = function () {
 
 	this.boneInverses = [];