diff --git a/viperx.go b/viperx.go
index efefd38..0c138d1 100644
--- a/viperx.go
+++ b/viperx.go
@@ -4,10 +4,12 @@ package viperx
 // Version: 2023年6月12日18:54:48
 
 import (
+	"errors"
 	"flag"
 	"fmt"
 	"log"
 	"os"
+	"reflect"
 
 	"github.com/fsnotify/fsnotify"
 	"github.com/spf13/viper"
@@ -17,6 +19,11 @@ import (
 
 func InitConfig(path string, data interface{}) error {
 
+	// 判断是否指针
+	if reflect.ValueOf(data).Kind() != reflect.Ptr {
+		return errors.New("data must be a pointer")
+	}
+
 	if len(path) == 0 {
 		flag.StringVar(&path, "c", "", "choose config file.")
 		flag.Parse()