diff --git a/fastapi/utils.py b/fastapi/utils.py
index 1bd2de317..721331131 100644
--- a/fastapi/utils.py
+++ b/fastapi/utils.py
@@ -282,16 +282,16 @@ def get_typed_signature(call: Callable[..., Any]) -> inspect.Signature:
             annotation=get_typed_annotation(param.annotation, globalns, typevars),
         )
         for param in signature.parameters.values()
-        if param.name != 'self'
+        if param.name != "self"
     ]
     typed_signature = inspect.Signature(typed_params)
     return typed_signature
 
 
 def get_typed_annotation(
-        annotation: Any,
-        globalns: Dict[str, Any],
-        typevars: Optional[Dict[str, type]] = None,
+    annotation: Any,
+    globalns: Dict[str, Any],
+    typevars: Optional[Dict[str, type]] = None,
 ) -> Any:
     if isinstance(annotation, str):
         annotation = ForwardRef(annotation)
@@ -798,4 +798,3 @@ def get_body_field(*, dependant: Dependant, name: str) -> Optional[ModelField]:
     )
     check_file_field(final_field)
     return final_field
-
diff --git a/tests/test_dependency_generic_class.py b/tests/test_dependency_generic_class.py
index 95b81eb84..3eeb8291e 100644
--- a/tests/test_dependency_generic_class.py
+++ b/tests/test_dependency_generic_class.py
@@ -19,7 +19,7 @@ class SecondGenericType(Generic[T, C]):
         simple: T,
         lst: List[T],
         dct: Dict[T, C],
-        custom_class: FirstGenericType[T] = Depends()
+        custom_class: FirstGenericType[T] = Depends(),
     ):
         self.simple = simple
         self.lst = lst
@@ -38,7 +38,7 @@ def depend_generic_type(obj: SecondGenericType[str, int] = Depends()):
         "dct": obj.dct,
         "custom_class": {
             "simple": obj.custom_class.simple,
-            "lst": obj.custom_class.lst
+            "lst": obj.custom_class.lst,
         },
     }