diff --git a/src/enums/MDNodaRepository.php b/src/enums/MDNodaRepository.php
index 0e84fa0..32a93ab 100644
--- a/src/enums/MDNodaRepository.php
+++ b/src/enums/MDNodaRepository.php
@@ -731,7 +731,7 @@ enum MDNodaRepository implements MDValueEnumInterface, JsonSerializable {
             self::loc       => self::validateLocId($id),
             self::mindatorg => self::validateNumericId($id, ['https://www.mindat.org/min-', '.html']),
             self::moebeltypologie => self::validateNumericId($id, ['https://term.museum-digital.de/moebel/tag/']),
-            self::ndb_adb   => self::validateGndId($id, ['https://www.deutsche-biographie.de/pnd', '.html', '#adbcontent', '#ndbcontent', '#indexcontent']),
+            self::ndb_adb   => self::validateGndId($id, ['https://www.deutsche-biographie.de/pnd', 'https://www.deutsche-biographie.de/gnd', '.html', '#adbcontent', '#ndbcontent', '#indexcontent']),
             self::ndl       => self::validateNumericId($id, [
                 'http://id.ndl.go.jp/auth/ndlna/',
                 'https://id.ndl.go.jp/auth/ndlna/',