diff --git a/python/sglang/srt/managers/schedule_batch.py b/python/sglang/srt/managers/schedule_batch.py
index cc180ba21..926266a62 100644
--- a/python/sglang/srt/managers/schedule_batch.py
+++ b/python/sglang/srt/managers/schedule_batch.py
@@ -269,12 +269,12 @@ class Req:
         all_text = self.origin_input_text + self.decoded_text + jump_forward_str
         all_ids = self.tokenizer.encode(all_text)
         if not all_ids:
-            warnings.warn("Encoded all_text resulted in empty all_ids")
+            logger.warning("Encoded all_text resulted in empty all_ids")
             return False
 
         prompt_tokens = len(self.origin_input_ids_unpadded)
         if prompt_tokens > len(all_ids):
-            warnings.warn("prompt_tokens is larger than encoded all_ids")
+            logger.warning("prompt_tokens is larger than encoded all_ids")
             return False
 
         if all_ids[prompt_tokens - 1] != self.origin_input_ids_unpadded[-1]: