diff --git a/model/manifest.go b/model/manifest.go
index 05cff11fd6..8d4038f47a 100644
--- a/model/manifest.go
+++ b/model/manifest.go
@@ -50,6 +50,8 @@ type PluginSetting struct {
 	// "longtext" will result in a multi line string that can be typed in manually.
 	//
 	// "username" will result in a text setting that will autocomplete to a username.
+	//
+	// "custom" will result in a custom defined setting and will load the custom component registered for the Web App System Console.
 	Type string `json:"type" yaml:"type"`
 
 	// The help text to display to the user. Supports Markdown formatting.