diff --git a/src/core/IndexedGeometry2.js b/src/core/IndexedGeometry2.js
index 30958d36446a0f20531dff94424b5d512f256843..750de8edf22ed3d99a75fb8845d598f027baa893 100644
--- a/src/core/IndexedGeometry2.js
+++ b/src/core/IndexedGeometry2.js
@@ -13,4 +13,4 @@ THREE.IndexedGeometry2 = function ( indices, vertices, normals, uvs ) {
 
 };
 
-THREE.IndexedGeometry2.prototype = Object.create( THREE.Geometry99.prototype );
+THREE.IndexedGeometry2.prototype = Object.create( THREE.BufferGeometry.prototype );