diff --git a/vllm/entrypoints/llm.py b/vllm/entrypoints/llm.py
index 1860f383d45fb..f6ee746789981 100644
--- a/vllm/entrypoints/llm.py
+++ b/vllm/entrypoints/llm.py
@@ -405,6 +405,9 @@ class LLM:
             lora_request: LoRA request to use for generation, if any.
             priority: The priority of the requests, if any.
                 Only applicable when priority scheduling policy is enabled.
+                If provided, must be a list of integers matching the length
+                of `prompts`, where each priority value corresponds to the prompt
+                at the same index.
 
         Returns:
             A list of `RequestOutput` objects containing the