diff --git a/scripts/datasethelper.py b/scripts/datasethelper.py
index 61389aab437016c0d38c67f04bd25210e0a68eff..42855809210dfc278667d9b8352a2ca7159febab 100644
--- a/scripts/datasethelper.py
+++ b/scripts/datasethelper.py
@@ -3,6 +3,7 @@ import intake
 import fsspec
 import xarray as xr
 import datetime
+from copy import deepcopy as copy
 
 INSTITUTE_KEYS = [
     "institution_id",