diff --git a/src/extras/core/CurvePath.js b/src/extras/core/CurvePath.js
index b6ff6c6d06e86edff44af98074bf703dbfb6ada8..fe85ef6886afebfa09f4b6c7717859a7e22b5754 100644
--- a/src/extras/core/CurvePath.js
+++ b/src/extras/core/CurvePath.js
@@ -204,7 +204,7 @@ THREE.CurvePath.prototype.createGeometry = function( points ) {
 
 	for ( var i = 0; i < points.length; i ++ ) {
 
-		geometry.vertices.push( new THREE.Vector3( points[ i ].x, points[ i ].y, 0 ) );
+		geometry.vertices.push( new THREE.Vector3( points[ i ].x, points[ i ].y, points[ i ].z ) );
 
 	}