diff --git a/static/pages/Create-your-smart-baby-monitor-with-Platypush-and-Tensorflow.md b/static/pages/Create-your-smart-baby-monitor-with-Platypush-and-Tensorflow.md
index 46d6c16..978c621 100644
--- a/static/pages/Create-your-smart-baby-monitor-with-Platypush-and-Tensorflow.md
+++ b/static/pages/Create-your-smart-baby-monitor-with-Platypush-and-Tensorflow.md
@@ -214,7 +214,7 @@ for audio_dir in audio_dirs:
     dataset_file = os.path.join(datasets_dir, os.path.basename(audio_dir.path) + '.npz')
     print(f'Processing audio sample {audio_dir.path}')
 
-    with AudioFile(audio_dir) as reader, \
+    with AudioFile(audio_dir.audio_file, audio_dir.labels_file) as reader, \
             DatasetWriter(dataset_file,
                           low_freq=cutoff_frequencies[0],
                           high_freq=cutoff_frequencies[1]) as writer: