diff --git a/mlair/data_handler/data_handler_mixed_sampling.py b/mlair/data_handler/data_handler_mixed_sampling.py
index 06a9a7047de8320e971f8bfc4b188265780e52e6..2d49fad7ccb4e7c7f031760ae338a57f64684298 100644
--- a/mlair/data_handler/data_handler_mixed_sampling.py
+++ b/mlair/data_handler/data_handler_mixed_sampling.py
@@ -2,8 +2,9 @@ __author__ = 'Lukas Leufen'
 __date__ = '2020-11-05'
 
 from mlair.data_handler.data_handler_single_station import DataHandlerSingleStation
-from mlair.data_handler.data_handler_with_filter import DataHandlerKzFilterSingleStation, \
-    DataHandlerFirFilterSingleStation, DataHandlerFilterSingleStation, DataHandlerClimateFirFilterSingleStation
+from mlair.data_handler.data_handler_with_filter import DataHandlerFirFilterSingleStation, \
+    DataHandlerFilterSingleStation, DataHandlerClimateFirFilterSingleStation
+# from mlair.data_handler.data_handler_with_filter import DataHandlerKzFilterSingleStation
 from mlair.data_handler.data_handler_with_filter import DataHandlerClimateFirFilter, DataHandlerFirFilter, \
     DataHandlerKzFilter
 from mlair.data_handler import DefaultDataHandler