diff --git a/egs/aishell/ASR/prepare.sh b/egs/aishell/ASR/prepare.sh
index f86dd8de3..eaeecfc4a 100755
--- a/egs/aishell/ASR/prepare.sh
+++ b/egs/aishell/ASR/prepare.sh
@@ -52,6 +52,9 @@ if [ $stage -le -1 ] && [ $stop_stage -ge -1 ]; then
 
   if [ ! -f $dl_dir/lm/3-gram.unpruned.arpa ]; then
     git clone https://huggingface.co/pkufool/aishell_lm $dl_dir/lm
+    pushd $dl_dir/lm
+    git lfs pull --include "3-gram.unpruned.arpa"
+    popd
   fi
 fi