diff --git a/guide/english/csharp/interface/index.md b/guide/english/csharp/interface/index.md
index 76da929621..be77488455 100644
--- a/guide/english/csharp/interface/index.md
+++ b/guide/english/csharp/interface/index.md
@@ -32,7 +32,7 @@ As interfaces do not implement any logic by themselves, they are a great tool fo
 
 Interface Example:
 ```csharp
-public Interface IUserFavoriteFood
+public interface IUserFavoriteFood
 {
   void AddFood();
   Task<User> EatFavoriteFood(int id);