diff --git a/adodb.inc.php b/adodb.inc.php
index 73bef1efd..b719c74ce 100644
--- a/adodb.inc.php
+++ b/adodb.inc.php
@@ -3756,6 +3756,7 @@ protected function getChangedErrorMsg($old = null) {
 	/**
 	 * Internal placeholder for record objects. Used by ADORecordSet->FetchObj().
 	 */
+	#[\AllowDynamicProperties]
 	class ADOFetchObj {
 	};