diff --git a/duckdb_engine/tests/test_basic.py b/duckdb_engine/tests/test_basic.py
index 717126f3..ecfc00f6 100644
--- a/duckdb_engine/tests/test_basic.py
+++ b/duckdb_engine/tests/test_basic.py
@@ -7,6 +7,7 @@
     Column,
     ForeignKey,
     Integer,
+    Interval,
     MetaData,
     Sequence,
     String,
@@ -52,6 +53,14 @@ class Owner(Base):
     )  # type: RelationshipProperty[FakeModel]
 
 
+class IntervalModel(Base):
+    __tablename__ = "IntervalModel"
+
+    id = Column(Integer, Sequence("IntervalModel_id_sequence"), primary_key=True)
+
+    field = Column(Interval)
+
+
 @fixture
 def session(engine: Engine) -> Session:
     return sessionmaker(bind=engine)()
@@ -179,3 +188,13 @@ def test_description() -> None:
     import duckdb
 
     duckdb.connect("").description
+
+
+@mark.xfail(reason="support not released", raises=RuntimeError)
+def test_intervals(session: Session) -> None:
+    session.add(IntervalModel(field=timedelta(days=1)))
+    session.commit()
+
+    owner = session.query(IntervalModel).one()  # act
+
+    assert owner.field == timedelta(days=1)