From 746ddb4425bc7e6222610ee051e5c6e0a1cdab50 Mon Sep 17 00:00:00 2001
From: DarkLight1337 <tlleungac@connect.ust.hk>
Date: Thu, 14 Aug 2025 14:48:46 +0000
Subject: [PATCH] [Bugfix] Fix parsing of `--disable-mm-preprocessor-cache`

Signed-off-by: DarkLight1337 <tlleungac@connect.ust.hk>
---
 vllm/engine/arg_utils.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vllm/engine/arg_utils.py b/vllm/engine/arg_utils.py
index c058001ceb97..dd1072da0844 100644
--- a/vllm/engine/arg_utils.py
+++ b/vllm/engine/arg_utils.py
@@ -711,7 +711,7 @@ def add_cli_args(parser: FlexibleArgumentParser) -> FlexibleArgumentParser:
             "--mm-processor-cache-gb",
             **multimodal_kwargs["mm_processor_cache_gb"])
         multimodal_group.add_argument("--disable-mm-preprocessor-cache",
-                                      type=bool,
+                                      action="store_true",
                                       deprecated=True)
         multimodal_group.add_argument(
             "--interleave-mm-strings",