diff --git a/examples/other/tts_finetune/tts3/run_mix.sh b/examples/other/tts_finetune/tts3/run_mix.sh
index 960278a5..7630022b 100755
--- a/examples/other/tts_finetune/tts3/run_mix.sh
+++ b/examples/other/tts_finetune/tts3/run_mix.sh
@@ -8,7 +8,6 @@ input_dir=./input/SSB0005_mini
 newdir_name="newdir"
 new_dir=${input_dir}/${newdir_name}
 pretrained_model_dir=./pretrained_models/fastspeech2_mix_ckpt_1.2.0
-mfa_tools=./tools
 mfa_dir=./mfa_result
 dump_dir=./dump
 output_dir=./exp/default