diff --git a/src/ifcopenshell-python/test/fixtures/validate/fail-invalid-selected-enumeration.ifc b/src/ifcopenshell-python/test/fixtures/validate/fail-invalid-selected-enumeration.ifc
index 03b6c5e9bd..7709215248 100644
--- a/src/ifcopenshell-python/test/fixtures/validate/fail-invalid-selected-enumeration.ifc
+++ b/src/ifcopenshell-python/test/fixtures/validate/fail-invalid-selected-enumeration.ifc
@@ -5,6 +5,6 @@ FILE_NAME('','2023-04-13T10:27:43',(),(),'IfcOpenShell v0.7.0-198fa67cc','IfcOpe
 FILE_SCHEMA(('IFC4'));
 ENDSEC;
 DATA;
-#1=IFCPRESENTATIONSTYLEASSIGNMENT((IFCNULLSTYLE('NOT_EXISTING_ENUM')));
+#1=IFCPRESENTATIONSTYLEASSIGNMENT((IFCNULLSTYLE(.NOT_EXISTING_ENUM.)));
 ENDSEC;
 END-ISO-10303-21;
diff --git a/src/ifcopenshell-python/test/fixtures/validate/pass-valid-selected-enumeration.ifc b/src/ifcopenshell-python/test/fixtures/validate/pass-valid-selected-enumeration.ifc
index 50f7b912f0..fa6e897d36 100644
--- a/src/ifcopenshell-python/test/fixtures/validate/pass-valid-selected-enumeration.ifc
+++ b/src/ifcopenshell-python/test/fixtures/validate/pass-valid-selected-enumeration.ifc
@@ -5,6 +5,6 @@ FILE_NAME('','2023-04-13T10:27:43',(),(),'IfcOpenShell v0.7.0-198fa67cc','IfcOpe
 FILE_SCHEMA(('IFC4'));
 ENDSEC;
 DATA;
-#1=IFCPRESENTATIONSTYLEASSIGNMENT((IFCNULLSTYLE('NULL')));
+#1=IFCPRESENTATIONSTYLEASSIGNMENT((IFCNULLSTYLE(.NULL.)));
 ENDSEC;
 END-ISO-10303-21;