diff --git a/python/sglang/srt/models/qwen3_vl.py b/python/sglang/srt/models/qwen3_vl.py
index 09c443b89..34a645078 100644
--- a/python/sglang/srt/models/qwen3_vl.py
+++ b/python/sglang/srt/models/qwen3_vl.py
@@ -1025,6 +1025,7 @@ class Qwen3VLForConditionalGeneration(nn.Module):
     ) -> None:
         super().__init__()
         self.pp_group = get_pp_group()
+        self.quant_config = quant_config
 
         self.use_data_parallel = get_global_server_args().mm_enable_dp_encoder