diff --git a/db/redis.go b/db/redis.go
index 2814fd2..48cdebb 100644
--- a/db/redis.go
+++ b/db/redis.go
@@ -133,7 +133,7 @@ func (db *redisDb) FindByUsername(username string) (*model.Skin, error) {
 func (db *redisDb) FindByUserId(id int) (*model.Skin, error) {
 	response := db.conn.Cmd("HGET", accountIdToUsernameKey, id)
 	if response.IsType(redis.Nil) {
-		return nil, SkinNotFoundError{"unknown"}
+		return nil, &SkinNotFoundError{"unknown"}
 	}
 
 	username, _ := response.Str()