diff --git a/plugins/inputs/mysql/README.md b/plugins/inputs/mysql/README.md
index 7c702568f..730caab91 100644
--- a/plugins/inputs/mysql/README.md
+++ b/plugins/inputs/mysql/README.md
@@ -25,8 +25,8 @@ This plugin gathers the statistic data from MySQL server
   ##  [username[:password]@][protocol[(address)]]/[?tls=[true|false|skip-verify]]
   ##  see https://github.com/go-sql-driver/mysql#dsn-data-source-name
   ##  e.g.
-  ##    root:passwd@tcp(127.0.0.1:3306)/?tls=false
-  ##    root@tcp(127.0.0.1:3306)/?tls=false
+  ##    db_user:passwd@tcp(127.0.0.1:3306)/?tls=false
+  ##    db_user@tcp(127.0.0.1:3306)/?tls=false
   #
   ## If no servers are specified, then localhost is used as the host.
   servers = ["tcp(127.0.0.1:3306)/"]
diff --git a/plugins/inputs/mysql/mysql.go b/plugins/inputs/mysql/mysql.go
index cf1854827..b8ff3945a 100644
--- a/plugins/inputs/mysql/mysql.go
+++ b/plugins/inputs/mysql/mysql.go
@@ -39,8 +39,8 @@ var sampleConfig = `
   ##  [username[:password]@][protocol[(address)]]/[?tls=[true|false|skip-verify]]
   ##  see https://github.com/go-sql-driver/mysql#dsn-data-source-name
   ##  e.g.
-  ##    root:passwd@tcp(127.0.0.1:3306)/?tls=false
-  ##    root@tcp(127.0.0.1:3306)/?tls=false
+  ##    db_user:passwd@tcp(127.0.0.1:3306)/?tls=false
+  ##    db_user@tcp(127.0.0.1:3306)/?tls=false
   #
   ## If no servers are specified, then localhost is used as the host.
   servers = ["tcp(127.0.0.1:3306)/"]