diff --git a/src/openai/resources/responses/responses.py b/src/openai/resources/responses/responses.py
index 570e7c94d5..a5539a08ba 100644
--- a/src/openai/resources/responses/responses.py
+++ b/src/openai/resources/responses/responses.py
@@ -1146,7 +1146,7 @@ def cancel(
             options=make_request_options(
                 extra_headers=extra_headers, extra_query=extra_query, extra_body=extra_body, timeout=timeout
             ),
-            cast_to=NoneType,
+            cast_to=Response,
         )