diff --git a/guide/english/csharp/return/index.md b/guide/english/csharp/return/index.md
index 85a7b9f674..058806a88a 100644
--- a/guide/english/csharp/return/index.md
+++ b/guide/english/csharp/return/index.md
@@ -9,7 +9,7 @@ The `return` statement terminates execution of a method inside which it appears
 If the `return` statement is inside a `try` block and if there is a `finally` block, then the control is passed to the `finally` block, after which it is returned to the calling method.
 
 ## Example
-```
+```csharp
 class Calc
 {
   static int Sum(int i, int j)