diff --git a/python/sglang/srt/models/kimi_k25_eagle3.py b/python/sglang/srt/models/kimi_k25_eagle3.py
index 621f554b4..42f5db3e1 100644
--- a/python/sglang/srt/models/kimi_k25_eagle3.py
+++ b/python/sglang/srt/models/kimi_k25_eagle3.py
@@ -261,9 +261,10 @@ class Eagle3MLAModel(nn.Module):
                 and not forward_batch.forward_mode.is_draft_extend(include_v2=True)
             ):
                 assert embeds is not None
-                embeds = torch.cat(
-                    [embeds[:-1], self.embed_tokens(input_ids[-1].unsqueeze(0))]
-                )
+                last_indices = (
+                    forward_batch.extend_start_loc + forward_batch.extend_seq_lens - 1
+                ).long()
+                embeds[last_indices] = self.embed_tokens(input_ids[last_indices])
             if embeds is None:
                 embeds = self.embed_tokens(input_ids)
         else: