diff --git a/src/snowflake/snowpark/types.py b/src/snowflake/snowpark/types.py
index 59a1a6fdae9..f78b35e1f97 100644
--- a/src/snowflake/snowpark/types.py
+++ b/src/snowflake/snowpark/types.py
@@ -683,6 +683,8 @@ def __init__(
             )
         else:
             self.structured = structured or False
+
+        self.fields = []
         for field in fields or []:
             self.add(field)
 
diff --git a/tests/integ/scala/test_datatype_suite.py b/tests/integ/scala/test_datatype_suite.py
index a1bd1d48acd..1004190b00e 100644
--- a/tests/integ/scala/test_datatype_suite.py
+++ b/tests/integ/scala/test_datatype_suite.py
@@ -856,9 +856,9 @@ def test_structured_dtypes_cast(structured_type_session, structured_type_support
         pytest.skip("Test requires structured type support.")
     expected_semi_schema = StructType(
         [
-            StructField("ARR", ArrayType(StringType()), nullable=True),
-            StructField("MAP", MapType(StringType(), StringType()), nullable=True),
-            StructField("OBJ", MapType(StringType(), StringType()), nullable=True),
+            StructField("ARR", ArrayType(), nullable=True),
+            StructField("MAP", MapType(), nullable=True),
+            StructField("OBJ", MapType(), nullable=True),
         ]
     )
     expected_structured_schema = StructType(
diff --git a/tests/unit/test_datatype_mapper.py b/tests/unit/test_datatype_mapper.py
index af8b9cd3c1c..44e84df0a43 100644
--- a/tests/unit/test_datatype_mapper.py
+++ b/tests/unit/test_datatype_mapper.py
@@ -123,9 +123,17 @@ def test_to_sql():
     assert (
         to_sql([1, "2", 3.5], ArrayType()) == "PARSE_JSON('[1, \"2\", 3.5]') :: ARRAY"
     )
+    assert (
+        to_sql([1, 2, 3], ArrayType(IntegerType(), structured=True))
+        == "PARSE_JSON('[1, 2, 3]') :: ARRAY(INT)"
+    )
     assert (
         to_sql({"'": '"'}, MapType()) == 'PARSE_JSON(\'{"\'\'": "\\\\""}\') :: OBJECT'
     )
+    assert (
+        to_sql({"'": '"'}, MapType(StringType(), structured=True))
+        == 'PARSE_JSON(\'{"\'\'": "\\\\""}\') :: MAP(STRING, STRING)'
+    )
     assert to_sql([{1: 2}], ArrayType()) == "PARSE_JSON('[{\"1\": 2}]') :: ARRAY"
     assert to_sql({1: [2]}, MapType()) == "PARSE_JSON('{\"1\": [2]}') :: OBJECT"
 
diff --git a/tests/unit/test_types.py b/tests/unit/test_types.py
index d5ffc9757f6..db5355d1cec 100644
--- a/tests/unit/test_types.py
+++ b/tests/unit/test_types.py
@@ -683,6 +683,7 @@ def {func_name}(x, y {datatype_str} = {annotated_value}) -> None:
 @pytest.mark.parametrize(
     "value_str,datatype,expected_value",
     [
+        (None, None, None),
         ("1", IntegerType(), 1),
         ("True", BooleanType(), True),
         ("1.0", FloatType(), 1.0),