diff --git a/mlair/data_handling/data_preparation_join.py b/mlair/data_handling/data_preparation_join.py
index 86c7dee055c8258069307567b28ffcd113e13477..516be5b3d4cebdbca4e9328f4886988008efbeb8 100644
--- a/mlair/data_handling/data_preparation_join.py
+++ b/mlair/data_handling/data_preparation_join.py
@@ -11,9 +11,9 @@ from typing import Union, List
 import pandas as pd
 import xarray as xr
 
-from src import helpers
-from src.helpers import join
-from src.data_handling.data_preparation import AbstractDataPrep
+from mlair import helpers
+from mlair.helpers import join
+from mlair.data_handling.data_preparation import AbstractDataPrep
 
 # define a more general date type for type hinting
 date = Union[dt.date, dt.datetime]