diff --git a/arbdmodel/mpipi_polymer.py b/arbdmodel/mpipi_polymer.py
index dae173f0bbede770bfdd3b21b43c69323c448d8f..7ed6977e9401588dab524e12a92e504f07cdc5cf 100644
--- a/arbdmodel/mpipi_polymer.py
+++ b/arbdmodel/mpipi_polymer.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 ## Test with `python -m arbdmodel.mpipi_polymer_model`
 
 import numpy as np