diff --git a/vllm/config/model.py b/vllm/config/model.py
index b9ae4fec14efa..6b36573813544 100644
--- a/vllm/config/model.py
+++ b/vllm/config/model.py
@@ -353,7 +353,6 @@ class ModelConfig:
             "hf_token",
             "hf_overrides",
             "logits_processor_pattern",
-            "enable_sleep_mode",
             "override_attention_dtype",
             "logits_processors",
             "io_processor_plugin",