diff --git a/helper/bench/prepare.sh b/helper/bench/prepare.sh
index b78f0d5..a4b7a51 100755
--- a/helper/bench/prepare.sh
+++ b/helper/bench/prepare.sh
@@ -6,5 +6,5 @@ git clone https://github.com/dtm-labs/dtm.git && cd dtm && git checkout alpha &&
 
 echo 'all prepared. you shoud run following commands to test in different terminal'
 echo
-echo 'cd dtf && go run helper/bench/main.go redis|boltdb|db'
-echo 'cd dtf && ./helper/bench/test-redis|boltdb|mysql.sh'
+echo 'cd dtm && go run helper/bench/main.go redis|boltdb|db'
+echo 'cd dtm && ./helper/bench/test-redis|boltdb|mysql.sh'