diff --git a/src/EventSubscriber/SectionComponentRender.php b/src/EventSubscriber/SectionComponentRender.php
index 9a5f0e8..5f4d836 100644
--- a/src/EventSubscriber/SectionComponentRender.php
+++ b/src/EventSubscriber/SectionComponentRender.php
@@ -22,8 +22,10 @@ class SectionComponentRender implements EventSubscriberInterface {
    * {@inheritdoc}
    */
   public static function getSubscribedEvents() {
-    $events[LayoutBuilderEvents::SECTION_COMPONENT_BUILD_RENDER_ARRAY] = ['onBuildRender'];
-
+    $events = [];
+    if (class_exists('LayoutBuilderEvents')) {
+      $events[LayoutBuilderEvents::SECTION_COMPONENT_BUILD_RENDER_ARRAY] = ['onBuildRender'];
+    }
     return $events;
   }