diff --git a/src/enums/MDNodaRepository.php b/src/enums/MDNodaRepository.php
index 677bb3b..b3673ec 100644
--- a/src/enums/MDNodaRepository.php
+++ b/src/enums/MDNodaRepository.php
@@ -655,6 +655,8 @@ enum MDNodaRepository implements MDValueEnumInterface, JsonSerializable {
         $id = strtr($id, [
             "http://nomisma.org/id/" => '',
             "https://nomisma.org/id/" => '',
+            "http://www.nomisma.org/id/" => '',
+            "https://www.nomisma.org/id/" => '',
         ]);
 
         // Ensure the remaining string does not contain spaces or slashes
diff --git a/tests/MDNodaRepositoryTest.php b/tests/MDNodaRepositoryTest.php
index c7dfb12..b1dce41 100644
--- a/tests/MDNodaRepositoryTest.php
+++ b/tests/MDNodaRepositoryTest.php
@@ -444,6 +444,8 @@ final class MDNodaRepositoryTest extends TestCase {
         yield "1234 (url, https)" => ["1234", "https://nomisma.org/id/1234"];
         yield "1234" => ["1234", "https://nomisma.org/id/1234"];
         yield "glass (url, https)" => ["glass", "https://nomisma.org/id/glass"];
+        yield "glass (url, http)" => ["glass", "http://nomisma.org/id/glass"];
+        yield "coin (url, http.www)" => ["coin", "http://www.nomisma.org/id/coin"];
         yield "glass" => ["glass", "glass"];
         yield "Broken input / empty string" => [false, ""];