diff --git a/ivas_processing_scripts/processing/processing.py b/ivas_processing_scripts/processing/processing.py
index f9ee128c40654e1f311c36cda560285397ee448a..76e25fe7cb70d7f061c53e3a888b208c3a36fe6f 100755
--- a/ivas_processing_scripts/processing/processing.py
+++ b/ivas_processing_scripts/processing/processing.py
@@ -36,6 +36,7 @@ from itertools import repeat
 from pathlib import Path
 from shutil import copyfile
 from typing import Iterable, Union
+from warnings import warn
 
 from ivas_processing_scripts.audiotools.audiofile import concat, split
 from ivas_processing_scripts.audiotools.metadata import (