diff --git a/cosyvoice2.yaml b/cosyvoice2.yaml
index d6bdeb6..bc19267 100644
--- a/cosyvoice2.yaml
+++ b/cosyvoice2.yaml
@@ -15,7 +15,7 @@ token_mel_ratio: 2
 
 # stream related params
 chunk_size: 25 # streaming inference chunk size, in token
-num_decoding_left_chunks: 1 # streaming inference flow decoder left chunk size, <0 means use all left chunks
+num_decoding_left_chunks: -1 # streaming inference flow decoder left chunk size, <0 means use all left chunks
 
 # model params
 # for all class/function included in this repo, we use !<name> or !<new> for intialization, so that user may find all corresponding class/function according to one single yaml.
@@ -230,4 +230,4 @@ train_conf_gan:
     grad_clip: 5
     accum_grad: 1 # in gan training, accum_grad must be 1
     log_interval: 100
-    save_per_step: -1
\ No newline at end of file
+    save_per_step: -1