diff --git a/plugins/inputs/varnish/README.md b/plugins/inputs/varnish/README.md
index 01ab7ac24..8949fe6db 100644
--- a/plugins/inputs/varnish/README.md
+++ b/plugins/inputs/varnish/README.md
@@ -20,7 +20,7 @@ This plugin gathers stats from [Varnish HTTP Cache](https://varnish-cache.org/)
 
    ## Optional name for the varnish instance (or working directory) to query
    ## Usually appened after -n in varnish cli
-   #name = instanceName
+   # instance_name = instanceName
 ```
 
 ### Measurements & Fields:
diff --git a/plugins/inputs/varnish/varnish.go b/plugins/inputs/varnish/varnish.go
index 7ceb7d250..f1c703971 100644
--- a/plugins/inputs/varnish/varnish.go
+++ b/plugins/inputs/varnish/varnish.go
@@ -48,7 +48,7 @@ var sampleConfig = `
 
   ## Optional name for the varnish instance (or working directory) to query
   ## Usually appened after -n in varnish cli
-  #name = instanceName
+  # instance_name = instanceName
 `
 
 func (s *Varnish) Description() string {