diff --git a/examples/PyMPDATA_examples/Arabas_and_Farhat_2020/__init__.py b/examples/PyMPDATA_examples/Arabas_and_Farhat_2020/__init__.py
index 7869b838..42fd658b 100644
--- a/examples/PyMPDATA_examples/Arabas_and_Farhat_2020/__init__.py
+++ b/examples/PyMPDATA_examples/Arabas_and_Farhat_2020/__init__.py
@@ -1,5 +1,5 @@
 """
-This example implements simulations presented in the 
+This example implements simulations presented in the
   [Arabas and Farhat 2020](https://doi.org/10.1016/j.cam.2019.05.023)
   study on pricing of European and American options using MPDATA.