diff --git a/README.md b/README.md
index 0c06f4f..69d16b6 100644
--- a/README.md
+++ b/README.md
@@ -93,7 +93,7 @@ Save model to local with specified format.
 ```python
 from towhee import ops
 
-op = ops.image_embedding.isc().get_op()
+op = ops.image_embedding.isc(device='cpu').get_op()
 op.save_model('onnx', 'test.onnx')
 ```