diff --git a/src/karapace/avro_dataclasses/introspect.py b/src/karapace/avro_dataclasses/introspect.py
index be9634493..ced8c8e96 100644
--- a/src/karapace/avro_dataclasses/introspect.py
+++ b/src/karapace/avro_dataclasses/introspect.py
@@ -5,12 +5,12 @@
 
 from __future__ import annotations
 
-from .schema import AvroType, EnumType, FieldSchema, MapType, RecordSchema
+from .schema import ArrayType, AvroType, EnumType, FieldSchema, MapType, RecordSchema, TypeObject
 from collections.abc import Mapping, Sequence
 from dataclasses import Field, fields, is_dataclass, MISSING
 from enum import Enum
 from functools import lru_cache
-from typing import Final, get_args, get_origin, TYPE_CHECKING, TypeVar, Union
+from typing import Final, get_args, get_origin, Literal, TYPE_CHECKING, TypeVar, Union
 
 import datetime
 import uuid
@@ -42,10 +42,17 @@ def _field_type_array(field: Field, origin: type, type_: object) -> AvroType:
     else:
         (inner_type,) = get_args(type_)
 
+    items: AvroType
+    if is_dataclass(inner_type):
+        assert isinstance(inner_type, type)
+        items = record_schema(inner_type)
+    else:
+        items = _field_type(field, inner_type)
+
     return {
         "name": f"one_of_{field.name}",
         "type": "array",
-        "items": (record_schema(inner_type) if is_dataclass(inner_type) else _field_type(field, inner_type)),
+        "items": items,
     }
 
 
@@ -143,6 +150,7 @@ def field_schema(field: Field) -> FieldSchema:
         "name": field.name,
         "type": _field_type(field, field.type),
     }
+    assert isinstance(field.type, type)
     return (
         {
             **schema,