diff --git a/topics/tutorials/custom_language_support/documentation_provider.md b/topics/tutorials/custom_language_support/documentation_provider.md
index 649957857..f5adb3c12 100644
--- a/topics/tutorials/custom_language_support/documentation_provider.md
+++ b/topics/tutorials/custom_language_support/documentation_provider.md
@@ -34,7 +34,7 @@ In the first step, we create an empty class that extends
 and register it in the <path>[plugin.xml](plugin_configuration_file.md)</path>.
 
 ```java
-public class SimpleDocumentationProvider extends AbstractDocumentationProvider { }
+final class SimpleDocumentationProvider extends AbstractDocumentationProvider { }
 ```
 
 Make sure the class is registered in the <path>plugin.xml</path> between the `extensions` tags, as shown below: