diff --git a/redis/redis.go b/redis/redis.go
index 01c31a8..1672d95 100644
--- a/redis/redis.go
+++ b/redis/redis.go
@@ -16,6 +16,8 @@ const (
 	defaultSlowThreshold = time.Millisecond * 100 // 慢查询
 )
 
+var Nil = redis.Nil
+
 var (
 	once sync.Once
 )
@@ -43,7 +45,7 @@ type ReidsOption struct {
 	ConnMaxLifetime time.Duration
 }
 
-type Client struct {
+type Client interface {
 	redis.UniversalClient
 }
 
@@ -79,5 +81,5 @@ func New(opt *ReidsOption) Client {
 		}
 	})
 
-	return Client{UniversalClient: rdb}
+	return rdb
 }
diff --git a/redis/redis_test.go b/redis/redis_test.go
index ff73259..e76815d 100644
--- a/redis/redis_test.go
+++ b/redis/redis_test.go
@@ -145,7 +145,7 @@ func runOnRedis(t *testing.T, fn func(client Client)) {
 func CreateMiniRedis() (r Client, clean func(), err error) {
 	mr, err := miniredis.Run()
 	if err != nil {
-		return Client{}, nil, err
+		return nil, nil, err
 	}
 
 	addr := mr.Addr()