diff --git a/spleeter/utils/audio/ffmpeg.py b/spleeter/utils/audio/ffmpeg.py
index 437cdfc..899f624 100644
--- a/spleeter/utils/audio/ffmpeg.py
+++ b/spleeter/utils/audio/ffmpeg.py
@@ -12,7 +12,7 @@ import os
 
 # pylint: disable=import-error
 import ffmpeg
-import numpy as np  
+import numpy as np
 # pylint: enable=import-error
 
 from .adapter import AudioAdapter