diff --git a/clip4clip.py b/clip4clip.py
index b6c1ea7..2a8fb24 100644
--- a/clip4clip.py
+++ b/clip4clip.py
@@ -23,6 +23,7 @@ from towhee import register
 from towhee.models import clip4clip
 from PIL import Image as PILImage
 from towhee.types import VideoFrame
+from pathlib import Path
 
 
 @register(output_schema=['vec'])
@@ -34,6 +35,9 @@ class CLIP4Clip(NNOperator):
     def __init__(self, model_name: str, modality: str, weight_path: str = None, device: str = None):
         super().__init__()
         self.modality = modality
+        if weight_path is None:
+            weight_path = str(Path(__file__).parent / 'pytorch_model.bin.1')
+            print('weight_path is None, use default path: {}'.format(weight_path))
         if device is None:
             self.device = "cuda" if torch.cuda.is_available() else "cpu"
         else: