diff --git a/TTS/tts/datasets/TTSDataset.py b/TTS/tts/datasets/TTSDataset.py
index 3d85e000..eaabb42b 100644
--- a/TTS/tts/datasets/TTSDataset.py
+++ b/TTS/tts/datasets/TTSDataset.py
@@ -53,6 +53,7 @@ class MyDataset(Dataset):
             use_noise_augment (bool): enable adding random noise to wav for augmentation.
             verbose (bool): print diagnostic information.
         """
+        super(MyDataset, self).__init__()
         self.batch_group_size = batch_group_size
         self.items = meta_data
         self.outputs_per_step = outputs_per_step
diff --git a/TTS/vocoder/datasets/wavernn_dataset.py b/TTS/vocoder/datasets/wavernn_dataset.py
index 257800b0..d45932c9 100644
--- a/TTS/vocoder/datasets/wavernn_dataset.py
+++ b/TTS/vocoder/datasets/wavernn_dataset.py
@@ -21,6 +21,7 @@ class WaveRNNDataset(Dataset):
                  verbose=False,
                  ):
 
+        super(WaveRNNDataset, self).__init__()
         self.ap = ap
         self.compute_feat = not isinstance(items[0], (tuple, list))
         self.item_list = items