diff --git a/flatland/utils/simple_rail.py b/flatland/utils/simple_rail.py
index a12c26e66fdf5a9ff102bb79440bd4f4b805e819..fa5d8ef4a3388afd4d63c5ab400d9055f4762363 100644
--- a/flatland/utils/simple_rail.py
+++ b/flatland/utils/simple_rail.py
@@ -56,6 +56,7 @@ def make_disconnected_simple_rail() -> Tuple[GridTransitionMap, np.array]:
     #                |
     #                |
     #                |
+
     transitions = RailEnvTransitions()
     cells = transitions.transition_list
     empty = cells[0]