diff --git a/src/extras/geometries/TubeGeometry.js b/src/extras/geometries/TubeGeometry.js
index b3e5021b5181739146732845fbaf53fdbf477ffa..aadaf99a7cd632150cd09e3b5f4f4165f3b1e4df 100644
--- a/src/extras/geometries/TubeGeometry.js
+++ b/src/extras/geometries/TubeGeometry.js
@@ -44,7 +44,7 @@ THREE.TubeGeometry = function( path, segments, radius, radiusSegments, closed, d
 		a, b, c, d,
 		uva, uvb, uvc, uvd;
 
-	var frames = new THREE.TubeGeometry.FrenetFrames(path, segments, closed),
+	var frames = new THREE.TubeGeometry.FrenetFrames(this.path, this.segments, this.closed),
 		tangents = frames.tangents,
 		normals = frames.normals,
 		binormals = frames.binormals;
@@ -107,7 +107,7 @@ THREE.TubeGeometry = function( path, segments, radius, radiusSegments, closed, d
 
 		for ( j = 0; j < this.radiusSegments; j++ ) {
 
-			ip = ( closed ) ? (i + 1) % this.segments : i + 1;
+			ip = ( this.closed ) ? (i + 1) % this.segments : i + 1;
 			jp = (j + 1) % this.radiusSegments;
 
 			a = this.grid[ i ][ j ];		// *** NOT NECESSARILY PLANAR ! ***