diff --git a/clash.go b/clash.go
index 8e1fd87..5cd2998 100644
--- a/clash.go
+++ b/clash.go
@@ -10,7 +10,6 @@ import (
 
 	"github.com/metacubex/meta-rules-converter/output/sing"
 
-	"github.com/sagernet/sing-box/option"
 	"github.com/spf13/cobra"
 	"gopkg.in/yaml.v3"
 )
@@ -113,7 +112,7 @@ func convertClash(cmd *cobra.Command, args []string) error {
 		for name, domain := range domainFull {
 			os.MkdirAll(outDir+"/"+name, 0755)
 			if len(domain) != 0 || len(domainSuffix[name]) != 0 || len(domainKeyword[name]) != 0 || len(domainRegex[name]) != 0 {
-				domainRule := []option.DefaultHeadlessRule{
+				domainRule := []sing.DefaultHeadlessRule{
 					{
 						Domain:        domain,
 						DomainKeyword: domainKeyword[name],
@@ -124,7 +123,7 @@ func convertClash(cmd *cobra.Command, args []string) error {
 				sing.SaveSingRuleSet(domainRule, outDir+"/"+name+"/domain")
 			}
 			if len(ipCIDR[name]) != 0 {
-				ipRule := []option.DefaultHeadlessRule{
+				ipRule := []sing.DefaultHeadlessRule{
 					{
 						IPCIDR: ipCIDR[name],
 					},
@@ -132,7 +131,7 @@ func convertClash(cmd *cobra.Command, args []string) error {
 				sing.SaveSingRuleSet(ipRule, outDir+"/"+name+"/ip")
 			}
 			if len(processName[name]) != 0 || len(packageName[name]) != 0 || len(processPath[name]) != 0 {
-				processRule := []option.DefaultHeadlessRule{
+				processRule := []sing.DefaultHeadlessRule{
 					{
 						ProcessName: processName[name],
 						PackageName: packageName[name],
@@ -142,14 +141,14 @@ func convertClash(cmd *cobra.Command, args []string) error {
 				sing.SaveSingRuleSet(processRule, outDir+"/"+name+"/process")
 			}
 			if len(dstPort[name]) != 0 {
-				otherRule := []option.DefaultHeadlessRule{
+				otherRule := []sing.DefaultHeadlessRule{
 					{
 						Port: dstPort[name],
 					},
 				}
 				sing.SaveSingRuleSet(otherRule, outDir+"/"+name+"/other")
 			}
-			classicalRule := []option.DefaultHeadlessRule{
+			classicalRule := []sing.DefaultHeadlessRule{
 				{
 					Domain:        domainFull[name],
 					DomainKeyword: domainKeyword[name],
diff --git a/geoip.go b/geoip.go
index f2f9c75..f4bcd70 100644
--- a/geoip.go
+++ b/geoip.go
@@ -14,7 +14,6 @@ import (
 	"gopkg.in/yaml.v3"
 
 	"github.com/metacubex/mihomo/component/geodata/router"
-	"github.com/sagernet/sing-box/option"
 	"github.com/spf13/cobra"
 )
 
@@ -109,11 +108,12 @@ func convertIP(cmd *cobra.Command, args []string) error {
 			if err != nil {
 				fmt.Println(code, " output err: ", err)
 			}
-			err = os.WriteFile(outDir+"/"+code+".list", []byte(strings.Join(cidrs, "\n")), 0755)
+			ipcidrOut = []byte(strings.Join(cidrs, "\n"))
+			err = os.WriteFile(outDir+"/"+code+".list", ipcidrOut, 0755)
 			if err != nil {
 				fmt.Println(code, " output err: ", err)
 			}
-			err = meta.SaveMetaRuleSet(ipcidrOut, "ipcidr", "yaml", outDir+"/"+code+".mrs")
+			err = meta.SaveMetaRuleSet(ipcidrOut, "ipcidr", "text", outDir+"/"+code+".mrs")
 			if err != nil {
 				fmt.Println(code, " output err: ", err)
 			}
@@ -130,15 +130,16 @@ func convertIP(cmd *cobra.Command, args []string) error {
 			if err != nil {
 				fmt.Println(code, " output err: ", err)
 			}
-			err = os.WriteFile(outDir+"/classical/"+code+".list", []byte(strings.Join(cidrs, "\n")), 0755)
+			classicalOut = []byte(strings.Join(cidrs, "\n"))
+			err = os.WriteFile(outDir+"/classical/"+code+".list", classicalOut, 0755)
 			if err != nil {
 				fmt.Println(code, " output err: ", err)
 			}
-			// meta.SaveMetaRuleSet(classicalOut, "classical", "yaml", outDir+"/classical/"+code+".mrs")
+			// meta.SaveMetaRuleSet(classicalOut, "classical", "text", outDir+"/classical/"+code+".mrs")
 		}
 	case "sing-box":
 		for code, cidrs := range countryCIDRs {
-			ipcidrRule := []option.DefaultHeadlessRule{
+			ipcidrRule := []sing.DefaultHeadlessRule{
 				{
 					IPCIDR: cidrs,
 				},
diff --git a/geosite.go b/geosite.go
index 063042a..c939c4a 100644
--- a/geosite.go
+++ b/geosite.go
@@ -13,7 +13,6 @@ import (
 	"gopkg.in/yaml.v3"
 
 	"github.com/metacubex/mihomo/component/geodata/router"
-	"github.com/sagernet/sing-box/option"
 	"github.com/spf13/cobra"
 )
 
@@ -171,11 +170,12 @@ func convertSite(cmd *cobra.Command, args []string) error {
 			if err != nil {
 				fmt.Println(code, " output err: ", err)
 			}
-			err = os.WriteFile(outDir+"/"+code+".list", []byte(strings.Join(domain, "\n")), 0755)
+			domainOut = []byte(strings.Join(domain, "\n"))
+			err = os.WriteFile(outDir+"/"+code+".list", domainOut, 0755)
 			if err != nil {
 				fmt.Println(code, " output err: ", err)
 			}
-			err = meta.SaveMetaRuleSet(domainOut, "domain", "yaml", outDir+"/"+code+".mrs")
+			err = meta.SaveMetaRuleSet(domainOut, "domain", "list", outDir+"/"+code+".mrs")
 			if err != nil {
 				fmt.Println(code, " output err: ", err)
 			}
@@ -190,15 +190,16 @@ func convertSite(cmd *cobra.Command, args []string) error {
 			if err != nil {
 				fmt.Println(code, " output err: ", err)
 			}
-			err = os.WriteFile(outDir+"/classical/"+code+".list", []byte(strings.Join(classical[code], "\n")), 0755)
+			classicalOut = []byte(strings.Join(classical[code], "\n"))
+			err = os.WriteFile(outDir+"/classical/"+code+".list", classicalOut, 0755)
 			if err != nil {
 				fmt.Println(code, " output err: ", err)
 			}
-			// meta.SaveMetaRuleSet(classicalOut, "classical", "yaml", outDir+"/classical/"+code+".mrs")
+			// meta.SaveMetaRuleSet(classicalOut, "classical", "text", outDir+"/classical/"+code+".mrs")
 		}
 	case "sing-box":
 		for code, domain := range domainFull {
-			domainRule := []option.DefaultHeadlessRule{
+			domainRule := []sing.DefaultHeadlessRule{
 				{
 					Domain:        domain,
 					DomainKeyword: domainKeyword[code],
diff --git a/output/meta/meta_ruleset.go b/output/meta/meta_ruleset.go
index 61b912f..0e24c61 100644
--- a/output/meta/meta_ruleset.go
+++ b/output/meta/meta_ruleset.go
@@ -20,10 +20,10 @@ func SaveMetaRuleSet(buf []byte, b string, f string, outputPath string) error {
 	if err != nil {
 		return err
 	}
-	RP.ConvertToMrs(buf, behavior, format, targetFile)
-	err = targetFile.Close()
+	err = RP.ConvertToMrs(buf, behavior, format, targetFile)
+	closeErr := targetFile.Close()
 	if err != nil {
 		return err
 	}
-	return nil
+	return closeErr
 }
diff --git a/output/sing/sing_ruleset.go b/output/sing/sing_ruleset.go
index 63f25b2..869bb6d 100644
--- a/output/sing/sing_ruleset.go
+++ b/output/sing/sing_ruleset.go
@@ -12,7 +12,9 @@ import (
 	"github.com/sagernet/sing/common/json"
 )
 
-func SaveSingRuleSet(rules []option.DefaultHeadlessRule, outputPath string) error {
+type DefaultHeadlessRule = option.DefaultHeadlessRule
+
+func SaveSingRuleSet(rules []DefaultHeadlessRule, outputPath string) error {
 	plainRuleSet := option.PlainRuleSetCompat{
 		Version: 1,
 		Options: option.PlainRuleSet{