diff --git a/src/enums/MDNodaRepository.php b/src/enums/MDNodaRepository.php
index 4848035..e3341eb 100644
--- a/src/enums/MDNodaRepository.php
+++ b/src/enums/MDNodaRepository.php
@@ -64,6 +64,7 @@ enum MDNodaRepository implements MDValueEnumInterface, JsonSerializable {
             'o-gnd'     => self::gnd,
             'O-GND'     => self::gnd,
             'pnd'       => self::gnd,
+            'http://d-nb.info/' => self::gnd, // This is technically wrong, but used in practice...
             'http://d-nb.info/gnd'  => self::gnd,
             'http://d-nb.info/gnd/' => self::gnd,
             'd-nb.info'             => self::gnd,