diff --git a/dbt/adapters/duckdb/relation.py b/dbt/adapters/duckdb/relation.py
index 01542316..6c902701 100644
--- a/dbt/adapters/duckdb/relation.py
+++ b/dbt/adapters/duckdb/relation.py
@@ -13,6 +13,7 @@
 
 @dataclass(frozen=True, eq=False, repr=False)
 class DuckDBRelation(BaseRelation):
+    require_alias: bool = False
     external: Optional[str] = None
 
     @classmethod
diff --git a/tests/functional/adapter/test_empty.py b/tests/functional/adapter/test_empty.py
new file mode 100644
index 00000000..4e115606
--- /dev/null
+++ b/tests/functional/adapter/test_empty.py
@@ -0,0 +1,9 @@
+from dbt.tests.adapter.empty.test_empty import BaseTestEmpty, BaseTestEmptyInlineSourceRef
+
+
+class TestDuckDBEmpty(BaseTestEmpty):
+    pass
+
+
+class TestDuckDBEmptyInlineSourceRef(BaseTestEmptyInlineSourceRef):
+    pass