diff --git a/cashocs/__init__.py b/cashocs/__init__.py
index c108ac6b..da8ad3db 100755
--- a/cashocs/__init__.py
+++ b/cashocs/__init__.py
@@ -59,7 +59,6 @@
 from cashocs.nonlinear_solvers import newton_solve
 from cashocs.nonlinear_solvers import picard_iteration
 
-
 __version__ = "2.2.0-dev"
 
 __citation__ = """