diff --git a/flatland/envs/observations.py b/flatland/envs/observations.py
index a086f1f5108cf71ab35c4beb14ad80efd52fd7a3..2d5b1a9a1dea636836bd4b2d1766716d5a2d0b85 100644
--- a/flatland/envs/observations.py
+++ b/flatland/envs/observations.py
@@ -22,8 +22,6 @@ class TreeObsForRailEnv(ObservationBuilder):
     For details about the features in the tree observation see the get() function.
     """
 
-
-
     def __init__(self, max_depth, predictor=None):
         super().__init__()
         self.max_depth = max_depth