diff --git a/app/src/main/java/com/tencent/iot/explorer/link/mvp/presenter/LoginPresenter.kt b/app/src/main/java/com/tencent/iot/explorer/link/mvp/presenter/LoginPresenter.kt
index eb2c7acb5..b1645dad6 100644
--- a/app/src/main/java/com/tencent/iot/explorer/link/mvp/presenter/LoginPresenter.kt
+++ b/app/src/main/java/com/tencent/iot/explorer/link/mvp/presenter/LoginPresenter.kt
@@ -12,7 +12,7 @@ class LoginPresenter : ParentPresenter<LoginModel, LoginView> {
     }
 
     fun getCountryCode(): String {
-        return model!!.getCountryCode()
+        return model?.getCountryCode().toString()
     }
 
     fun setCountry(country: String) {