diff --git a/superset/connectors/sqla/models.py b/superset/connectors/sqla/models.py
index 4ae3efbaf1c..19bd3bbc1bb 100644
--- a/superset/connectors/sqla/models.py
+++ b/superset/connectors/sqla/models.py
@@ -230,6 +230,8 @@ class TableColumn(Model, BaseColumn):
 
     @property
     def type_generic(self) -> Optional[utils.GenericDataType]:
+        if self.is_dttm:
+            return GenericDataType.TEMPORAL
         column_spec = self.db_engine_spec.get_column_spec(self.type)
         return column_spec.generic_type if column_spec else None
 
diff --git a/tests/sqla_models_tests.py b/tests/sqla_models_tests.py
index 69dc4c737f1..a759270809c 100644
--- a/tests/sqla_models_tests.py
+++ b/tests/sqla_models_tests.py
@@ -102,6 +102,10 @@ class TestDatabaseModel(SupersetTestCase):
             self.assertEqual(col.is_numeric, db_col_type == GenericDataType.NUMERIC)
             self.assertEqual(col.is_string, db_col_type == GenericDataType.STRING)
 
+        for str_type, db_col_type in test_cases.items():
+            col = TableColumn(column_name="foo", type=str_type, table=tbl, is_dttm=True)
+            self.assertTrue(col.is_temporal)
+
     @patch("superset.jinja_context.g")
     def test_extra_cache_keys(self, flask_g):
         flask_g.user.username = "abc"