diff --git a/base.go b/base.go
index e7e4340..ea9338b 100644
--- a/base.go
+++ b/base.go
@@ -203,8 +203,8 @@ func (api *API) CallWithErrorParse(method string, params interface{}, result int
 
 // Login Calls "user.login" API method and fills api.Auth field.
 // This method modifies API structure and should not be called concurrently with other methods.
-func (api *API) Login(user, password string) (auth string, err error) {
-	params := map[string]string{"user": user, "password": password}
+func (api *API) Login(username, password string) (auth string, err error) {
+	params := map[string]string{"username": username, "password": password}
 	response, err := api.CallWithError("user.login", params)
 	if err != nil {
 		return