diff --git a/src/EventSubscriber/CacheControlOverrideSubscriber.php b/src/EventSubscriber/CacheControlOverrideSubscriber.php
index 51d77ec..ea05c40 100644
--- a/src/EventSubscriber/CacheControlOverrideSubscriber.php
+++ b/src/EventSubscriber/CacheControlOverrideSubscriber.php
@@ -4,9 +4,11 @@ declare(strict_types=1);
 
 namespace Drupal\cache_control_override\EventSubscriber;
 
+use DateTime;
 use Drupal\Core\Cache\CacheableResponseInterface;
 use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Config\ConfigFactoryInterface;
+use Exception;
 use Symfony\Component\HttpKernel\KernelEvents;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\HttpKernel\Event\ResponseEvent;
@@ -83,6 +85,13 @@ final class CacheControlOverrideSubscriber implements EventSubscriberInterface {
         }
       }
       $response->headers->set('Cache-Control', 'public, max-age=' . $maxAge);
+
+      try {
+        // This is needed because page_cache uses this header to invalidate the page cache.
+        $response->setExpires(new DateTime('+' . $maxAge . ' seconds'));
+      } catch (Exception $e) {
+        // Could not set Expires header because max-age is invalid.
+      }
     }
   }