diff --git a/examples/aishell/paraformer/conf/train_asr_paraformer_conformer_12e_6d_2048_256.yaml b/examples/aishell/paraformer/conf/train_asr_paraformer_conformer_12e_6d_2048_256.yaml
index 7d41c640e..dc2da1c59 100644
--- a/examples/aishell/paraformer/conf/train_asr_paraformer_conformer_12e_6d_2048_256.yaml
+++ b/examples/aishell/paraformer/conf/train_asr_paraformer_conformer_12e_6d_2048_256.yaml
@@ -107,7 +107,7 @@ dataset_conf:
 tokenizer: CharTokenizer
 tokenizer_conf:
   unk_symbol: <unk>
-  split_with_space: true
+  split_with_space: false
 
 
 ctc_conf: