1diff --git a/vllm/model_executor/models/registry.py b/vllm/model_executor/models/registry.py
2index 81623def..2a6e2c92 100644
3--- a/vllm/model_executor/models/registry.py
4+++ b/vllm/model_executor/models/registry.py
5@@ -521,6 +521,7 @@ def _run_in_subprocess(fn: Callable[[], _T]) -> _T:
6 # contains relative imports
7 returned = subprocess.run(_SUBPROCESS_COMMAND,
8 input=input_bytes,
9+ env={'PYTHONPATH': ':'.join(sys.path)},
10 capture_output=True)
11
12 # check if the subprocess is successful