diff --git a/egs/aishell2/conformer/local/prepare_data.sh b/egs/aishell2/conformer/local/prepare_data.sh
index ce6ee1909..77791f9c1 100755
--- a/egs/aishell2/conformer/local/prepare_data.sh
+++ b/egs/aishell2/conformer/local/prepare_data.sh
@@ -34,14 +34,14 @@ fi
 # validate utt-key list, IC0803W0380 is a bad utterance
 awk '{print $1}' $corpus/wav.scp | grep -v 'IC0803W0380' > $tmp/wav_utt.list
 awk '{print $1}' $corpus/trans.txt > $tmp/trans_utt.list
-tools/filter_scp.pl -f 1 $tmp/wav_utt.list $tmp/trans_utt.list > $tmp/utt.list
+utils/filter_scp.pl -f 1 $tmp/wav_utt.list $tmp/trans_utt.list > $tmp/utt.list
 
 # wav.scp
 awk -F'\t' -v path_prefix=$corpus '{printf("%s\t%s/%s\n",$1,path_prefix,$2)}' $corpus/wav.scp > $tmp/tmp_wav.scp
-tools/filter_scp.pl -f 1 $tmp/utt.list $tmp/tmp_wav.scp | sort -k 1 | uniq > $tmp/wav.scp
+utils/filter_scp.pl -f 1 $tmp/utt.list $tmp/tmp_wav.scp | sort -k 1 | uniq > $tmp/wav.scp
 
 # text
-tools/filter_scp.pl -f 1 $tmp/utt.list $corpus/trans.txt | sort -k 1 | uniq > $tmp/text
+utils/filter_scp.pl -f 1 $tmp/utt.list $corpus/trans.txt | sort -k 1 | uniq > $tmp/text
 
 # copy prepared resources from tmp_dir to target dir
 mkdir -p $dir