diff --git a/cmd/config/single.yml b/cmd/config/single.yml
index 6a1aa1b..b11a886 100644
--- a/cmd/config/single.yml
+++ b/cmd/config/single.yml
@@ -2,11 +2,13 @@ storage-way: 1  #Storage way optional items:0 memory、1 bolt、2 badger、3 red
 storage-path: comqtt.db  #Local storage path in single node mode.
 bridge-way: 0  #Bridge way optional items:0 disable、1 kafka
 bridge-path: ./cmd/config/bridge-kafka.yml  #The bridge config file path
-auth-way: 1  #Authentication way: 0 anonymous, 1 username and password, 2 clientid
-auth-datasource: 1   #Optional items:0 free、1 redis、2 mysql、3 postgresql、4 http ...
-auth-path: ./config/auth-redis.yml  #The config file path should correspond to the auth-datasource
 pprof-enable: false #Whether to enable the performance analysis tool http://ip:6060
 
+auth:
+  way: 1  #Authentication way: 0 anonymous, 1 username and password, 2 clientid
+  datasource: 1   #Optional items:0 free、1 redis、2 mysql、3 postgresql、4 http ...
+  conf-path: ./config/auth-redis.yml  #The config file path should correspond to the auth-datasource
+
 mqtt:
   tcp: :1883
   ws: :1882
@@ -61,4 +63,4 @@ log:
   level: 1          #-1Trace 0Debug 1Info 2Warn 3Error(default) 4Fatal 5Panic 6NoLevel 7Off
   sampler:          #a maximum of three logs can be output every second
     burst: 3        #log count
-    period: 1       #second
\ No newline at end of file
+    period: 1       #second