diff --git a/system/src/Grav/Common/Flex/Types/Pages/PageObject.php b/system/src/Grav/Common/Flex/Types/Pages/PageObject.php
index 63f4cd4d48..933a00a32b 100644
--- a/system/src/Grav/Common/Flex/Types/Pages/PageObject.php
+++ b/system/src/Grav/Common/Flex/Types/Pages/PageObject.php
@@ -308,7 +308,7 @@ public function delete()
         // Backwards compatibility with older plugins.
         $fireEvents = $this->isAdminSite() && $this->getFlexDirectory()->getConfig('object.compat.events', true);
         if ($fireEvents) {
-            $this->grav->fireEvent('onAdminAfterDelete', new Event(['object' => $this]));
+            $this->getContainer()->fireEvent('onAdminAfterDelete', new Event(['object' => $this]));
         }
 
         return $result;