diff --git a/python/sglang/srt/speculative/frozen_kv_mtp_utils.py b/python/sglang/srt/speculative/frozen_kv_mtp_utils.py
index 71ebc4c99..043d8b63f 100644
--- a/python/sglang/srt/speculative/frozen_kv_mtp_utils.py
+++ b/python/sglang/srt/speculative/frozen_kv_mtp_utils.py
@@ -140,7 +140,7 @@ def select_last_verified_seed(
     counts = draft_input.num_accept_tokens.to(torch.long)
     last_indices = torch.cumsum(counts, dim=0) - 1
     return (
-        draft_input.bonus_tokens[last_indices],
+        draft_input.input_ids[last_indices],
         draft_input.hidden_states[last_indices],
     )