diff --git a/README.md b/README.md
index 833dc2c..ca1a252 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ An image embedding operator implemented with pretrained models provided by [Timm
 from towhee import ops
 import numpy as np
 
-img_encoder = ops.image_embedding.timm('resnet50')
+img_encoder = ops.image_embedding.timm(model_name='resnet50')
 fake_img = np.zeros((256, 256, 3))
 image_embedding = img_encoder(fake_img)
 ```