diff --git a/lib/adodb/adodb.inc.php b/lib/adodb/adodb.inc.php
index 3225b9749ad..e0c8643b5d7 100644
--- a/lib/adodb/adodb.inc.php
+++ b/lib/adodb/adodb.inc.php
@@ -3744,6 +3744,7 @@ http://www.stanford.edu/dept/itss/docs/oracle/10g/server.101/b10759/statements_1
 	/**
 	 * Internal placeholder for record objects. Used by ADORecordSet->FetchObj().
 	 */
+	#[AllowDynamicProperties]
 	class ADOFetchObj {
 	};
 
diff --git a/lib/adodb/readme_moodle.txt b/lib/adodb/readme_moodle.txt
index b0323c5fcdc..701281fc851 100644
--- a/lib/adodb/readme_moodle.txt
+++ b/lib/adodb/readme_moodle.txt
@@ -35,4 +35,5 @@ Notes:
    4. https://github.com/ADOdb/ADOdb/commit/5766f6b17aac1da80302840416e24ac9a341742c
    5. https://github.com/ADOdb/ADOdb/commit/f52cf8a68cb6e0b702c8e7a6a8fa5da3e59ad13a
    6. https://github.com/ADOdb/ADOdb/commit/f7b91c2a45e2c89868894f73a65a096fbc4c1a0f
-   Some of the commits added properties and removed some codes to avoid adding new properties.
\ No newline at end of file
+   Some of the commits added properties and removed some codes to avoid adding new properties.
+ * 2023-09-28 Added #[AllowDynamicProperties] above the ADOFetchObj class.