diff --git a/examples/python/pincell/build-xml.py b/examples/python/pincell/build-xml.py
index 4d41a3126..a9e6a5a74 100644
--- a/examples/python/pincell/build-xml.py
+++ b/examples/python/pincell/build-xml.py
@@ -119,7 +119,7 @@ settings_file.export_to_xml()
 ###############################################################################
 
 # Instantiate a tally mesh
-mesh = openmc.Mesh(mesh_id=1)
+mesh = openmc.Mesh()
 mesh.type = 'regular'
 mesh.dimension = [100, 100, 1]
 mesh.lower_left = [-0.62992, -0.62992, -1.e50]