diff --git a/lib/galaxy/webapps/base/api.py b/lib/galaxy/webapps/base/api.py
index a0faf2b11371..2c8cc4b8b11c 100644
--- a/lib/galaxy/webapps/base/api.py
+++ b/lib/galaxy/webapps/base/api.py
@@ -264,7 +264,7 @@ def include_all_package_routers(app: FastAPI, package_name: str):
     # handle CORS preflight requests - synchronize with wsgi behavior.
     # this needs to happen last so it doesn't clobber routes with explicit cors handling
     # it doesn't affect the CORS middleware since the middleware terminates the request handling before routing
-    @app.options("/api/{rest_of_path:path}")
+    @app.options("/api/{rest_of_path:path}", include_in_schema=False)
     async def preflight_handler(request: Request, rest_of_path: str) -> Response:
         response = Response()
         response.headers["Access-Control-Allow-Headers"] = "*"