diff --git a/vllm/engine/arg_utils.py b/vllm/engine/arg_utils.py
index b30967c676d5..06529ae25a83 100644
--- a/vllm/engine/arg_utils.py
+++ b/vllm/engine/arg_utils.py
@@ -1361,11 +1361,6 @@ class EngineArgs:
                                recommend_to_remove=True)
             return False
 
-        if self.additional_config != EngineArgs.additional_config:
-            _raise_or_fallback(feature_name="--additional-config",
-                               recommend_to_remove=False)
-            return False
-
         # Xgrammar and Guidance are supported.
         SUPPORTED_GUIDED_DECODING = [
             "xgrammar", "xgrammar:disable-any-whitespace", "guidance",