diff --git a/Firewall/AnonymousAuthenticationListener.php b/Firewall/AnonymousAuthenticationListener.php
index 0f1da391..999796d3 100644
--- a/Firewall/AnonymousAuthenticationListener.php
+++ b/Firewall/AnonymousAuthenticationListener.php
@@ -19,6 +19,9 @@
 use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
 use Symfony\Component\Security\Core\Exception\AuthenticationException;
 
+// Help opcache.preload discover always-needed symbols
+class_exists(AnonymousToken::class);
+
 /**
  * AnonymousAuthenticationListener automatically adds a Token if none is
  * already present.
diff --git a/Firewall/LegacyListenerTrait.php b/Firewall/LegacyListenerTrait.php
index 260cb680..6f2bc223 100644
--- a/Firewall/LegacyListenerTrait.php
+++ b/Firewall/LegacyListenerTrait.php
@@ -15,6 +15,9 @@
 use Symfony\Component\HttpKernel\Event\GetResponseEvent;
 use Symfony\Component\HttpKernel\Event\RequestEvent;
 
+// Help opcache.preload discover always-needed symbols
+class_exists(RequestEvent::class);
+
 /**
  * @deprecated
  *