diff --git a/src/renderers/webgl/WebGLObjects.js b/src/renderers/webgl/WebGLObjects.js
index 8c09a5c9107e85b9d9722d1ef4518580b341b9c2..104f37e2529d89cd1d92d177089e1fd229c81825 100644
--- a/src/renderers/webgl/WebGLObjects.js
+++ b/src/renderers/webgl/WebGLObjects.js
@@ -205,7 +205,6 @@ function WebGLObjects( gl, properties, info ) {
 
 		if ( index !== null ) {
 
-			var edges = {};
 			var array = index.array;
 
 			for ( var i = 0, l = array.length; i < l; i += 3 ) {