diff --git a/vllm/prefix.py b/vllm/prefix.py
index 415da1fc6d2b..06b5b32a38fc 100644
--- a/vllm/prefix.py
+++ b/vllm/prefix.py
@@ -11,7 +11,6 @@ class Prefix:
         prefix caching in the future.
 
     Args:
-        prefix_id: The id of the prefix in the prefix pool.
         token_ids: The token ids of the prefix.
         block_size: The block size of the executed model.
     """
diff --git a/vllm/sequence.py b/vllm/sequence.py
index fd10bc9b5b8c..ca647afce9f1 100644
--- a/vllm/sequence.py
+++ b/vllm/sequence.py
@@ -229,6 +229,7 @@ class SequenceGroup:
         seqs: The list of sequences.
         sampling_params: The sampling parameters used to generate the outputs.
         arrival_time: The arrival time of the request.
+        prefix: The prefix of the prompt of the sequence group.
     """
 
     def __init__(