diff --git a/docs/source/cpp/pretrained_models/online_transducer.rst b/docs/source/cpp/pretrained_models/online_transducer.rst
index ecf203f2d..9d8c766fb 100644
--- a/docs/source/cpp/pretrained_models/online_transducer.rst
+++ b/docs/source/cpp/pretrained_models/online_transducer.rst
@@ -39,6 +39,7 @@ icefall-asr-librispeech-streaming-zipformer-2023-05-17
   cd icefall-asr-librispeech-streaming-zipformer-2023-05-17
 
   git lfs pull --include "exp/jit_script_chunk_16_left_128.pt"
+  git lfs pull --include "data/lang_bpe_500/LG.pt"
 
   for m in greedy_search modified_beam_search fast_beam_search; do
     sherpa-online \