diff --git a/away3d/extrusions/PathExtrude.hx b/away3d/extrusions/PathExtrude.hx
index 1d2b09e9..bf9f04cf 100644
--- a/away3d/extrusions/PathExtrude.hx
+++ b/away3d/extrusions/PathExtrude.hx
@@ -627,7 +627,7 @@ class PathExtrude extends Mesh
 		
 		var dist:Float = 0;
 		var tdist:Float;
-		var bleft:Vector3D;
+		var bleft:Vector3D = null;
 		var bu:Float = 0;
 		var bincu:Float = 0;