diff --git a/ebl/fragmentarium/application/fragment_fields_schemas.py b/ebl/fragmentarium/application/fragment_fields_schemas.py
index 152fb6718..0270418e4 100644
--- a/ebl/fragmentarium/application/fragment_fields_schemas.py
+++ b/ebl/fragmentarium/application/fragment_fields_schemas.py
@@ -145,6 +145,7 @@ class ExternalNumbersSchema(Schema):
     oracc_numbers = fields.List(
         fields.String(), load_default=(), data_key="oraccNumbers"
     )
+    digitale_keilschrift_bibliothek = fields.String(load_default="", data_key="digitaleKeilschriftBibliothek")
     seal_numbers = fields.List(fields.String(), load_default=(), data_key="sealNumbers")
 
     @post_load
diff --git a/ebl/fragmentarium/domain/fragment_external_numbers.py b/ebl/fragmentarium/domain/fragment_external_numbers.py
index af9b03c33..687dd3b1d 100644
--- a/ebl/fragmentarium/domain/fragment_external_numbers.py
+++ b/ebl/fragmentarium/domain/fragment_external_numbers.py
@@ -21,6 +21,7 @@ class ExternalNumbers:
     philadelphia_number: str = ""
     achemenet_number: str = ""
     nabucco_number: str = ""
+    digitale_keilschrift_bibliothek: str = ""
     yale_peabody_number: str = ""
     oracc_numbers: Sequence[str] = ()
     seal_numbers: Sequence[str] = ()
@@ -100,6 +101,10 @@ def achemenet_number(self) -> str:
     def nabucco_number(self) -> str:
         return self._get_external_number("nabucco")
 
+    @property
+    def digitale_keilschrift_bibliothek(self) -> str:
+        return self._get_external_number("digitale_keilschrift_bibliothek")
+
     @property
     def philadelphia_number(self) -> str:
         return self._get_external_number("philadelphia_number")
diff --git a/ebl/tests/factories/fragment.py b/ebl/tests/factories/fragment.py
index 0ab7cee2e..579d12975 100644
--- a/ebl/tests/factories/fragment.py
+++ b/ebl/tests/factories/fragment.py
@@ -199,6 +199,7 @@ class Meta:
     yale_peabody_number = factory.Sequence(lambda n: f"yale-peabody-number-{n}")
     achemenet_number = factory.Sequence(lambda n: f"achemenet-number-{n}")
     nabucco_number = factory.Sequence(lambda n: f"nabucco-number-{n}")
+    digitale_keilschrift_bibliothek = factory.Sequence(lambda n: f"digitale-keilschrift-bibliothek-{n}")
     oracc_numbers = factory.List(
         [factory.Sequence(lambda n: f"oracc-number-{n}")], TupleFactory
     )