diff --git a/src/Symfony/Component/HttpKernel/Attribute/AsController.php b/src/Symfony/Component/HttpKernel/Attribute/AsController.php
index ef371045134d..48f8e577fddb 100644
--- a/src/Symfony/Component/HttpKernel/Attribute/AsController.php
+++ b/src/Symfony/Component/HttpKernel/Attribute/AsController.php
@@ -12,7 +12,11 @@
 namespace Symfony\Component\HttpKernel\Attribute;
 
 /**
- * Service tag to autoconfigure controllers.
+ * Autoconfigures controllers as services by applying
+ * the `controller.service_arguments` tag to them.
+ *
+ * This enables injecting services as method arguments in addition
+ * to other conventional dependency injection strategies.
  */
 #[\Attribute(\Attribute::TARGET_CLASS)]
 class AsController