diff --git a/JMSSerializerBundle.php b/JMSSerializerBundle.php
index 89e97562..d151a2e5 100644
--- a/JMSSerializerBundle.php
+++ b/JMSSerializerBundle.php
@@ -16,10 +16,7 @@
 
 class JMSSerializerBundle extends Bundle
 {
-    /**
-     * @return void
-     */
-    public function build(ContainerBuilder $builder)
+    public function build(ContainerBuilder $builder): void
     {
         $builder->addCompilerPass(new AssignVisitorsPass(), PassConfig::TYPE_BEFORE_OPTIMIZATION);