diff --git a/configs/config.json b/configs/config.json
index 7a32184..813532f 100644
--- a/configs/config.json
+++ b/configs/config.json
@@ -31,7 +31,7 @@
     "n_mel_channels": 128,
     "mel_fmin": 0.0,
     "mel_fmax": null,
-    "add_blank": false,
+    "add_blank": true,
     "n_speakers": 256,
     "cleaned_text": true,
     "spk2id": {