diff --git a/superset/models/helpers.py b/superset/models/helpers.py
index f869d0e0cee..e9c1ecce9fd 100644
--- a/superset/models/helpers.py
+++ b/superset/models/helpers.py
@@ -3886,7 +3886,7 @@ class ExploreMixin:  # pylint: disable=too-many-public-methods
                     }:
                         # Native UUID columns report GenericDataType.STRING but
                         # reject LIKE/ILIKE without a cast (see issue #41795)
-                        needs_string_cast_for_like = (
+                        needs_string_cast_for_like: bool = (
                             target_generic_type != GenericDataType.STRING
                             or is_uuid_native_type(col_type)
                         )
diff --git a/tests/unit_tests/models/helpers_test.py b/tests/unit_tests/models/helpers_test.py
index 0094475b50d..e340ff8e8a9 100644
--- a/tests/unit_tests/models/helpers_test.py
+++ b/tests/unit_tests/models/helpers_test.py
@@ -3761,7 +3761,7 @@ def test_like_filter_on_uuid_column_casts_to_string(
         is_timeseries=False,
         orderby=[],
     )
-    whereclause = result.sqla_query.whereclause
+    whereclause: ColumnElement = result.sqla_query.whereclause
     assert any(isinstance(node, Cast) for node in iterate(whereclause)), (
         f"Expected a Cast node in the filter expression: {whereclause}"
     )