diff --git a/nodes/analyzer/mesh_select_mk2.py b/nodes/analyzer/mesh_select_mk2.py
index 41757acdf1f341c95f5f87f92f9a6ef9c9217330..c6f76e7fd81de46982d8a259caf9bf213d15c10b 100644
--- a/nodes/analyzer/mesh_select_mk2.py
+++ b/nodes/analyzer/mesh_select_mk2.py
@@ -159,7 +159,7 @@ def by_normal(vertices, edges, faces, percent, direction):
     return out_face_mask
 
 def by_outside(vertices, edges, faces, percent, center):
-    face_normals, _ = calc_mesh_normals(vertices, edges, faces)
+    face_normals = pols_normals(vertices, faces, output_numpy=True)
     center = Vector(center[0])
 
     def get_center(face):