diff --git a/vllm_omni/experimental/fullduplex/openai/realtime_input.py b/vllm_omni/experimental/fullduplex/openai/realtime_input.py
index f07c3dd83..3e55d44e1 100644
--- a/vllm_omni/experimental/fullduplex/openai/realtime_input.py
+++ b/vllm_omni/experimental/fullduplex/openai/realtime_input.py
@@ -1100,7 +1100,7 @@ class RealtimeInputTranslator:
                 return f"{field_path}.interrupt_response must be a boolean"
             if interrupt_response is not True:
                 return (
-                    f"{field_path}.interrupt_response=false is unsupported; "
+                    f"{field_path}=server_vad with interrupt_response=false is unsupported; "
                     "use turn_detection=null for model-owned listen/speak"
                 )