diff --git a/vllm/v1/engine/processor.py b/vllm/v1/engine/processor.py
index 713a5d38dfdd..a75f0946b4ce 100644
--- a/vllm/v1/engine/processor.py
+++ b/vllm/v1/engine/processor.py
@@ -94,7 +94,7 @@ def _validate_supported_sampling_params(
         params: SamplingParams,
     ) -> None:
         # Best of not yet supported.
-        if params.best_of:
+        if params.best_of is not None and params.best_of > 1:
             raise ValueError("VLLM V1 does not yet support best_of.")
         # Bad words not yet supported.
         if params.bad_words: