diff --git a/otlmow_model/OtlmowModel/Classes/ImplementatieElement/AIMNaamObject.py b/otlmow_model/OtlmowModel/Classes/ImplementatieElement/AIMNaamObject.py
index ea58a85bd..679a16971 100644
--- a/otlmow_model/OtlmowModel/Classes/ImplementatieElement/AIMNaamObject.py
+++ b/otlmow_model/OtlmowModel/Classes/ImplementatieElement/AIMNaamObject.py
@@ -14,7 +14,7 @@ def __init__(self, naam: str, label: str, objectUri: str, definition: str, owner
     @classmethod
     def validate(cls, value, attribuut) -> bool:
         if StringField.validate(value, attribuut):
-            return re.match(r'^[a-zA-Z0-9.\-_]*$', value) is not None
+            return re.match('^[a-zA-Z0-9.\-_]*$', value) is not None
         else:
             return False
 
diff --git a/otlmow_model/OtlmowModel/Datatypes/KlDraagconstructieDwarsdoorsnede.py b/otlmow_model/OtlmowModel/Datatypes/KlDraagconstructieDwarsdoorsnede.py
index 5598b52ff..0f7e2351a 100644
--- a/otlmow_model/OtlmowModel/Datatypes/KlDraagconstructieDwarsdoorsnede.py
+++ b/otlmow_model/OtlmowModel/Datatypes/KlDraagconstructieDwarsdoorsnede.py
@@ -22,6 +22,11 @@ class KlDraagconstructieDwarsdoorsnede(KeuzelijstField):
                                        label='octagonaal',
                                        status='ingebruik',
                                        objectUri='https://wegenenverkeer.data.vlaanderen.be/id/concept/KlDraagconstructieDwarsdoorsnede/octagonaal'),
+        'rechthoekig': KeuzelijstWaarde(invulwaarde='rechthoekig',
+                                        label='rechthoekig',
+                                        status='ingebruik',
+                                        definitie='rechthoekig',
+                                        objectUri='https://wegenenverkeer.data.vlaanderen.be/id/concept/KlDraagconstructieDwarsdoorsnede/rechthoekig'),
         'rond': KeuzelijstWaarde(invulwaarde='rond',
                                  label='rond',
                                  status='ingebruik',
diff --git a/otlmow_model/version_info.json b/otlmow_model/version_info.json
index 3dd48e215..ef1f76ea3 100644
--- a/otlmow_model/version_info.json
+++ b/otlmow_model/version_info.json
@@ -1,9 +1,9 @@
 {
     "current": {
-        "model_version": "2.13.4.0",
+        "model_version": "2.13.4.1",
         "otl_version": "2.13.0",
-        "created_at": "2024-11-21T23:40:00",
-        "created_by": "davidvlaminck"
+        "created_at": "2024-11-23T04:01:10",
+        "created_by": "automatic_update.py"
     },
     "history": {
         "2.9.2.1": {
@@ -339,6 +339,14 @@
             "updated_class_model": true,
             "updated_enums": false,
             "enums_updated": []
+        },
+        "2.13.4.1": {
+            "previous_version": "2.13.4.0",
+            "updated_class_model": false,
+            "updated_enums": true,
+            "enums_updated": [
+                "KlDraagconstructieDwarsdoorsnede"
+            ]
         }
     }
 }
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index cc08dc339..29e91c163 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "otlmow_model"
-version = "2.13.4.0"
+version = "2.13.4.1"
 readme = "README.md"
 classifiers = [ "Programming Language :: Python :: 3", "Programming Language :: Python :: 3.9", "Programming Language :: Python :: 3.10", "Programming Language :: Python :: 3.11", "Programming Language :: Python :: 3.12", "Programming Language :: Python :: 3.13", "Operating System :: OS Independent", "Development Status :: 5 - Production/Stable", "Environment :: Console", "Intended Audience :: Developers", "Intended Audience :: Information Technology", "License :: OSI Approved :: GNU General Public License v3 (GPLv3)", "Natural Language :: Dutch", "Topic :: Software Development", "Topic :: Software Development :: Libraries :: Python Modules", "Topic :: Software Development :: Quality Assurance",]
 requires-python = ">=3.9"