diff --git a/python/sglang/srt/entrypoints/openai/protocol.py b/python/sglang/srt/entrypoints/openai/protocol.py
index 7d065b5aa..9c73e5fad 100644
--- a/python/sglang/srt/entrypoints/openai/protocol.py
+++ b/python/sglang/srt/entrypoints/openai/protocol.py
@@ -192,9 +192,9 @@ class CompletionRequest(BaseModel):
     session_params: Optional[Dict] = None
 
     # For PD disaggregation
-    bootstrap_host: Optional[str] = None
-    bootstrap_port: Optional[int] = None
-    bootstrap_room: Optional[int] = None
+    bootstrap_host: Optional[Union[List[str], str]] = None
+    bootstrap_port: Optional[Union[List[Optional[int]], int]] = None
+    bootstrap_room: Optional[Union[List[int], int]] = None
 
     # For request id
     rid: Optional[Union[List[str], str]] = None