diff --git a/README.md b/README.md
index 8ff6262..705363f 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ from towhee import dc
 
 
 dc.stream(["Hello, world."])
-  .text_embedding.longformer("allenai/longformer-base-4096")
+  .text_embedding.longformer(model_name="allenai/longformer-base-4096")
   .show()
 ```