diff --git a/redis.go b/redis.go
index dbbd91d..6267d2b 100644
--- a/redis.go
+++ b/redis.go
@@ -36,7 +36,7 @@ func (rd *RedisObj) GetRedis(vm *goja.Runtime, connUrl string) *Redis {
 	return &Redis{pool: conn}
 }
 
-func (rd *RedisObj) SetDefault(connUrl string, thisArg goja.Value, vm *goja.Runtime) {
+func (rd *RedisObj) SetDefault(connUrl string, vm *goja.Runtime) {
 	defaultConnName = connUrl
 	defaultConn.pool = redis.GetRedis(connUrl, gojs.GetLogger(vm))
 }