diff --git a/python/sglang/srt/model_loader/loader.py b/python/sglang/srt/model_loader/loader.py
index 5998eb0234ab..db9d0972e80d 100644
--- a/python/sglang/srt/model_loader/loader.py
+++ b/python/sglang/srt/model_loader/loader.py
@@ -479,7 +479,7 @@ def _get_weights_iterator(
     ) -> Generator[Tuple[str, torch.Tensor], None, None]:
         """Get an iterator for the model weights based on the load format."""
         extra_config = self.load_config.model_loader_extra_config
-        use_multithread = extra_config.get("enable_multithread_load", False)
+        use_multithread = extra_config.get("enable_multithread_load", True)
         hf_folder, hf_weights_files, use_safetensors = self._prepare_weights(
             source.model_or_path, source.revision, source.fall_back_to_pt
         )