diff --git a/fastapi/_compat.py b/fastapi/_compat.py
index bdc259b77f..16904277a5 100644
--- a/fastapi/_compat.py
+++ b/fastapi/_compat.py
@@ -10,12 +10,12 @@ from typing import (
     FrozenSet,
     List,
     Mapping,
+    Optional,
     Sequence,
     Set,
     Tuple,
     Type,
     Union,
-    Optional,
 )
 
 from fastapi.exceptions import RequestErrorModel
diff --git a/fastapi/applications.py b/fastapi/applications.py
index b83432d722..7c4f3d40ec 100644
--- a/fastapi/applications.py
+++ b/fastapi/applications.py
@@ -2485,7 +2485,7 @@ class FastAPI(Starlette):
             ),
         ] = False,
         response_model_context: Annotated[
-           Optional[Dict[str, Any]],
+            Optional[Dict[str, Any]],
             Doc(
                 """
                 Additional context to pass to Pydantic when creating the response.
diff --git a/fastapi/routing.py b/fastapi/routing.py
index 6dca913e89..f8d938ab87 100644
--- a/fastapi/routing.py
+++ b/fastapi/routing.py
@@ -1577,7 +1577,7 @@ class APIRouter(routing.Router):
         ] = False,
         response_model_context: Annotated[
             Optional[Dict[str, Any]],
-                Doc(
+            Doc(
                 """
                 Additional context to pass to Pydantic when creating the response.
                 """