diff --git a/src/common/tools/hosts.go b/src/common/tools/hosts.go
index 0c61c247b053df17b0d8d2bcc3f6f85090d01662..210f71a35f5c0d36bc17e96c82e528a7955213d6 100644
--- a/src/common/tools/hosts.go
+++ b/src/common/tools/hosts.go
@@ -2,7 +2,6 @@ package tools
 
 import (
 	"bufio"
-	"log"
 	"os"
 	"strings"
 )
@@ -12,11 +11,7 @@ func HostsToJson() (data map[string][]string, err error) {
 	if err != nil {
 		return nil, err
 	}
-	defer func() {
-		if err = f.Close(); err != nil {
-			log.Fatal(err)
-		}
-	}()
+	defer f.Close()
 	data = make(map[string][]string)
 	// 以这个文件为参数，创建一个 scanner
 	s := bufio.NewScanner(f)