diff --git a/mlair/data_handler/data_handler_single_station.py b/mlair/data_handler/data_handler_single_station.py
index e184260a8bfe3095c59b8c957cae18c7d7815af3..6190784f27a3257c12cf7f6228d5e10324c61a89 100644
--- a/mlair/data_handler/data_handler_single_station.py
+++ b/mlair/data_handler/data_handler_single_station.py
@@ -595,7 +595,6 @@ class DataHandlerSingleStation(AbstractDataHandler):
             intersect = reduce(np.intersect1d, (non_nan_history.coords[dim].values, non_nan_label.coords[dim].values,
                                                 non_nan_observation.coords[dim].values))
 
-
         if len(intersect) < max(self.min_length, 1):
             self.history = None
             self.label = None