diff --git a/llama_cpp/llama_types.py b/llama_cpp/llama_types.py
index 573d7d651..bbb58afc3 100644
--- a/llama_cpp/llama_types.py
+++ b/llama_cpp/llama_types.py
@@ -275,7 +275,7 @@ class ChatCompletionNamedToolChoice(TypedDict):
 
 
 ChatCompletionToolChoiceOption = Union[
-    Literal["none", "auto"], ChatCompletionNamedToolChoice
+    Literal["none", "auto", "required"], ChatCompletionNamedToolChoice
 ]