diff --git a/conf.sample.yml b/conf.sample.yml
index 807d582..31ba6d5 100644
--- a/conf.sample.yml
+++ b/conf.sample.yml
@@ -31,7 +31,7 @@
 #   MaxIdleConns: 500
 #   ConnMaxLifeTime 5 # default value is 5 (minutes)
 #   TransGlobalTable: 'dtm.trans_global'
-#   TransBranchOp: 'dtm.trans_branch_op'
+#   TransBranchOpTable: 'dtm.trans_branch_op'
 
 ### flollowing config is only for some Driver
 #   DataExpire: 604800 # Trans data will expire in 7 days. only for redis/boltdb.