diff --git a/pySim/runtime.py b/pySim/runtime.py
index 35452a08..19d35382 100644
--- a/pySim/runtime.py
+++ b/pySim/runtime.py
@@ -1,4 +1,5 @@
 # coding=utf-8
+
 """Representation of the runtime state of an application like pySim-shell.
 """