diff --git a/src/fprime_gds/common/loaders/xml_loader.py b/src/fprime_gds/common/loaders/xml_loader.py
index 01a4f02a..ed577f27 100644
--- a/src/fprime_gds/common/loaders/xml_loader.py
+++ b/src/fprime_gds/common/loaders/xml_loader.py
@@ -232,7 +232,7 @@ def get_enum_type(self, enum_name, xml_obj):
                     item_val = int(item.get(self.ENUM_ELEM_VAL_TAG))
                     members[item_name] = item_val
 
-                enum_obj = EnumType.construct_type(enum_name, members, rep_type=serialize_type)
+                enum_obj = EnumType.construct_type(enum_name, members, serialize_type)
 
                 self.enums[enum_name] = enum_obj
                 return enum_obj