diff --git a/python/sglang/srt/lora/lora_manager.py b/python/sglang/srt/lora/lora_manager.py
index 7b9918cdc..4a70b8123 100644
--- a/python/sglang/srt/lora/lora_manager.py
+++ b/python/sglang/srt/lora/lora_manager.py
@@ -311,6 +311,8 @@ class LoRAManager:
         lora_ranks = [0] * self.max_loras_per_batch
         scalings = [0] * self.max_loras_per_batch
         for i, uid in enumerate(forward_batch.lora_ids):
+            if uid not in self.memory_pool.uid_to_buffer_id:
+                continue
             weight_indices[i] = self.memory_pool.get_buffer_id(uid)
             if uid is not None:
                 lora = self.loras[uid]