diff --git a/enhancer/cli/train_config/dataset/Vctk.yaml b/enhancer/cli/train_config/dataset/Vctk.yaml
index 2ea4018..0db0e7e 100644
--- a/enhancer/cli/train_config/dataset/Vctk.yaml
+++ b/enhancer/cli/train_config/dataset/Vctk.yaml
@@ -6,7 +6,7 @@ stride : 0.5
 sampling_rate: 16000
 batch_size: 4
 valid_minutes : 1
-
+num_workers: 0
 files:
   train_clean : clean_trainset_28spk_wav
   test_clean : clean_testset_wav