diff --git a/src/NOCQ/Plugins/Email/IEmailSetting.cs b/src/NOCQ/Plugins/Email/IEmailSetting.cs
index 018bdb7..e4244ca 100644
--- a/src/NOCQ/Plugins/Email/IEmailSetting.cs
+++ b/src/NOCQ/Plugins/Email/IEmailSetting.cs
@@ -1,6 +1,6 @@
 using System;
 using System.Collections.Generic;
-namespace NOCQ
+namespace NOCQ.Plugins.Email
 {
 	public interface IEmailSetting
     {