diff --git a/examples/esc50/cls0/path.sh b/examples/esc50/cls0/path.sh
index 867cfb5da64e35dc86c3349a8d892403bdc1d5a6..38a242a4ab3dd01e29873e8f827f9bdb4656fb57 100644
--- a/examples/esc50/cls0/path.sh
+++ b/examples/esc50/cls0/path.sh
@@ -9,6 +9,3 @@ export PYTHONIOENCODING=UTF-8
 export PYTHONPATH=${MAIN_ROOT}:${PYTHONPATH}
 
 export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/lib/
-
-MODEL=deepspeech2
-export BIN_DIR=${MAIN_ROOT}/paddlespeech/s2t/exps/${MODEL}/bin