diff --git a/scripts/d3d_path_extrude/d3d_path_extrude.gml b/scripts/d3d_path_extrude/d3d_path_extrude.gml
index 2008a0e61..9797b32dd 100644
--- a/scripts/d3d_path_extrude/d3d_path_extrude.gml
+++ b/scripts/d3d_path_extrude/d3d_path_extrude.gml
@@ -125,7 +125,7 @@ function __3dPathExtrude(radius = 0.5, sides = 8, smooth = false) : __3dObject()
 			
 			v._normalize();
 			
-				 if(v.equal(_ux)) u = v.cross(_ux);
+				 if(v.equal(_ux)) u = v.cross(_uz);
 			else if(v.equal(_uz)) u = v.cross(_uy); 
 			else                  u = v.cross(_uz);