diff --git a/doc/manual_experimental.md b/doc/manual_experimental.md
index 3b552ef8e5..87381f6559 100644
--- a/doc/manual_experimental.md
+++ b/doc/manual_experimental.md
@@ -2450,7 +2450,7 @@ main()
 
 Will produce: 
 
-```c++
+```cpp
 
 struct Test {
 	Foo foo;