diff --git a/litestar/datastructures/headers.py b/litestar/datastructures/headers.py
index 410952467a..d31c602981 100644
--- a/litestar/datastructures/headers.py
+++ b/litestar/datastructures/headers.py
@@ -12,6 +12,7 @@
     Optional,
     Union,
     cast,
+    overload,
 )
 
 import msgspec
@@ -440,6 +441,12 @@ def __getitem__(self, key: int) -> str:
     def __iter__(self) -> Iterator[str]:
         return map(str, self._accepted_types)
 
+    @overload
+    def best_match(self, provided_types: list[str], default: None = None) -> Optional[str]: ...
+
+    @overload
+    def best_match(self, provided_types: list[str], default: str) -> str: ...
+
     def best_match(self, provided_types: list[str], default: Optional[str] = None) -> Optional[str]:
         """Find the best matching media type for the request.