diff --git a/io_scene_psk_psa/psk/importer.py b/io_scene_psk_psa/psk/importer.py
index c701db9..f07fd11 100644
--- a/io_scene_psk_psa/psk/importer.py
+++ b/io_scene_psk_psa/psk/importer.py
@@ -227,6 +227,7 @@ def import_psk(psk: Psk, context, options: PskImportOptions) -> PskImportResult:
             for vertex_normal in psk.vertex_normals:
                 normals.append(tuple(vertex_normal))
             mesh_data.normals_split_custom_set_from_vertices(normals)
+            mesh_data.use_auto_smooth = True
         else:
             mesh_data.shade_smooth()