diff --git a/app/extensions/extension_edit.php b/app/extensions/extension_edit.php
index 3c7c887110..56681a8a03 100644
--- a/app/extensions/extension_edit.php
+++ b/app/extensions/extension_edit.php
@@ -46,7 +46,7 @@
 	if (!empty($_REQUEST["id"]) && is_uuid($_REQUEST["id"])) {
 		$action = "update";
 		$extension_uuid = $_REQUEST["id"];
-		$page = $_REQUEST['page'];
+		$page = $_REQUEST['page'] ?? null;
 	}
 	else {
 		$action = "add";