diff --git a/src/iks008_cooksMembrane.cpp b/src/iks008_cooksMembrane.cpp
index c8fabdf..b6c21e5 100644
--- a/src/iks008_cooksMembrane.cpp
+++ b/src/iks008_cooksMembrane.cpp
@@ -34,7 +34,6 @@
 #include <ikarus/utils/observer/controlvtkwriter.hh>
 #include <ikarus/utils/pythonautodiffdefinitions.hh>
 
-
 using namespace Ikarus;
 using namespace Dune::Indices;