diff --git a/fastapi/dependencies/utils.py b/fastapi/dependencies/utils.py
index ee8b003cc..dad7e6562 100644
--- a/fastapi/dependencies/utils.py
+++ b/fastapi/dependencies/utils.py
@@ -77,7 +77,7 @@ sequence_shape_to_type = {
 }
 
 mapping_shapes = {SHAPE_MAPPING}
-mapping_types = (Mapping)
+mapping_types = Mapping
 mapping_shapes_to_type = {SHAPE_MAPPING: Mapping}
 
 multipart_not_installed_error = (
diff --git a/tests/test_query.py b/tests/test_query.py
index 3e0544bb2..6fbca4d2c 100644
--- a/tests/test_query.py
+++ b/tests/test_query.py
@@ -63,7 +63,7 @@ response_not_valid_int = {
             "/query/sequence-params?first-query=1&first-query=2",
             200,
             "foo bar {'first-query': [1, 2]}",
-        )
+        ),
     ],
 )
 def test_get_path(path, expected_status, expected_response):