diff --git a/fastdeploy/engine/args_utils.py b/fastdeploy/engine/args_utils.py
index b5b10ca6c..4add2e78e 100644
--- a/fastdeploy/engine/args_utils.py
+++ b/fastdeploy/engine/args_utils.py
@@ -489,7 +489,7 @@ class EngineArgs:
                 raise NotImplementedError("processed_logprobs not support in speculative.")
             if self.speculative_config is not None and self.max_logprobs == -1:
                 raise NotImplementedError("max_logprobs=-1 not support in speculative.")
-            if not envs.FD_USE_GET_SAVE_OUTPUT_V1:
+            if not envs.FD_USE_GET_SAVE_OUTPUT_V1 and (self.max_logprobs == -1 or self.max_logprobs > 20):
                 self.max_logprobs = 20
                 console_logger.warning("Set max_logprobs=20 when FD_USE_GET_SAVE_OUTPUT_V1=0")
             if self.max_logprobs == -1 and not envs.ENABLE_V1_KVCACHE_SCHEDULER: