diff --git a/doc/developer/tests/test-syntax-highlighting.md b/doc/developer/tests/test-syntax-highlighting.md
index 7f8f4cdaa8..b1568c385f 100644
--- a/doc/developer/tests/test-syntax-highlighting.md
+++ b/doc/developer/tests/test-syntax-highlighting.md
@@ -133,7 +133,7 @@ echo "Hello World"
 
 ### CoffeeScript
 
-``` coffee
+``` coffeescript
 console.log(“Hello world!”);
 ```