diff --git a/controllers/auth_controller.go b/controllers/auth_controller.go
index 9e7580ebc..d7c1dd9f7 100644
--- a/controllers/auth_controller.go
+++ b/controllers/auth_controller.go
@@ -123,7 +123,7 @@ func (c *AuthController) SendMobileVerifyCode() {
 // @Param	token			header			string		true	"认证token"
 // @Param	mobile			formData		string		true	"手机号"
 // @Param	code			formData		string		true	"验证码"
-// @Param	nickname		formData		string		true	"用户名"
+// @Param	nickname		formData		string		false	"用户名"
 // @Success 200 {object} controllers.CallResult
 // @Failure 200 {object} controllers.CallResult
 // @router /BindMobile [post]