diff --git a/io_scene_map/export_map.py b/io_scene_map/export_map.py
index 77108b8f530fedd06713e760238dbb6ed2b44f40..2d11aad105847bc32eef120822b5e7b8d6e50bbe 100644
--- a/io_scene_map/export_map.py
+++ b/io_scene_map/export_map.py
@@ -355,7 +355,7 @@ def export_map(context, filepath):
         #XXX25: BPyMesh.meshCalcNormals(dummy_mesh)
 
         # We need tessfaces
-        dummy_mesh.update(calc_tessface)
+        dummy_mesh.update(calc_tessface=True)
 
         # Split mesh into connected regions
         for face_group in mesh_utils.mesh_linked_tessfaces(dummy_mesh):