diff --git a/os/gcmd/gcmd_command_run.go b/os/gcmd/gcmd_command_run.go
index 9669af81d..845900fa8 100644
--- a/os/gcmd/gcmd_command_run.go
+++ b/os/gcmd/gcmd_command_run.go
@@ -157,7 +157,7 @@ func (c *Command) reParse(ctx context.Context, parser *Parser) (*Parser, error)
 			return nil, err
 		}
 		configMap := value.Map()
-		for optionName, _ := range parser.passedOptions {
+		for optionName, _ := range parser.supportedOptions {
 			// The command line has the high priority.
 			if parser.GetOpt(optionName) != nil {
 				continue
diff --git a/os/gcmd/gcmd_parser.go b/os/gcmd/gcmd_parser.go
index ea59b7cbb..35aa4ae82 100644
--- a/os/gcmd/gcmd_parser.go
+++ b/os/gcmd/gcmd_parser.go
@@ -26,8 +26,8 @@ type Parser struct {
 	strict           bool              // Whether stops parsing and returns error if invalid option passed.
 	parsedArgs       []string          // As name described.
 	parsedOptions    map[string]string // As name described.
-	passedOptions    map[string]bool   // User passed supported options.
-	supportedOptions map[string]bool   // Option [OptionName:WhetherNeedArgument].
+	passedOptions    map[string]bool   // User passed supported options, like: map[string]bool{"name,n":true}
+	supportedOptions map[string]bool   // Option [OptionName:WhetherNeedArgument], like: map[string]bool{"name":true, "n":true}
 	commandFuncMap   map[string]func() // Command function map for function handler.
 }