diff --git a/chore/_xtool/llcppsymg/llcppsymg.go b/chore/_xtool/llcppsymg/llcppsymg.go
index af1a8538..8d356a63 100644
--- a/chore/_xtool/llcppsymg/llcppsymg.go
+++ b/chore/_xtool/llcppsymg/llcppsymg.go
@@ -53,6 +53,7 @@ func main() {
 
 	config, err := getConf(data)
 	check(err)
+	defer config.Delete()
 
 	if err != nil {
 		fmt.Fprintln(os.Stderr, "Failed to parse config file:", cfgFile)
@@ -77,19 +78,24 @@ func check(err error) {
 	}
 }
 
-func getConf(data []byte) (*types.Config, error) {
-	conf := cjson.ParseBytes(data)
-	if conf == nil {
-		return nil, errors.New("failed to parse config")
+func getConf(data []byte) (types.Conf, error) {
+	parsedConf := cjson.ParseBytes(data)
+	if parsedConf == nil {
+		return types.Conf{}, errors.New("failed to parse config")
 	}
+
 	config := &types.Config{
-		Name:         getStringItem(conf, "name", ""),
-		CFlags:       getStringItem(conf, "cflags", ""),
-		Libs:         getStringItem(conf, "libs", ""),
-		Include:      getStringArrayItem(conf, "include"),
-		TrimPrefixes: getStringArrayItem(conf, "trimPrefixes"),
+		Name:         getStringItem(parsedConf, "name", ""),
+		CFlags:       getStringItem(parsedConf, "cflags", ""),
+		Libs:         getStringItem(parsedConf, "libs", ""),
+		Include:      getStringArrayItem(parsedConf, "include"),
+		TrimPrefixes: getStringArrayItem(parsedConf, "trimPrefixes"),
 	}
-	return config, nil
+
+	return types.Conf{
+		JSON:   parsedConf,
+		Config: config,
+	}, nil
 }
 
 func getString(obj *cjson.JSON) (value string) {
diff --git a/chore/llcppg/types/types.go b/chore/llcppg/types/types.go
index e71885ef..bd516458 100644
--- a/chore/llcppg/types/types.go
+++ b/chore/llcppg/types/types.go
@@ -16,6 +16,10 @@
 
 package types
 
+import (
+	"github.com/goplus/llgo/c/cjson"
+)
+
 // Config represents a configuration for the llcppg tool.
 type Config struct {
 	Name         string   `json:"name"`
@@ -26,6 +30,11 @@ type Config struct {
 	JSONPath     string   `json:"jsonPath"`
 }
 
+type Conf struct {
+	*cjson.JSON
+	*Config
+}
+
 type CPPSymbol struct {
 	Symbol string `json:"symbol"`
 	Type   string `json:"type"`