diff --git a/deploy/cpp_infer/readme.md b/deploy/cpp_infer/readme.md
index 7c8e4e34c8d44c185dcbfe0630e6d43702217914..f0c6b41807b8af6ab0e56e736b43021e3ac4546a 100644
--- a/deploy/cpp_infer/readme.md
+++ b/deploy/cpp_infer/readme.md
@@ -141,11 +141,11 @@ build/paddle_inference_install_dir/
 ```
 inference/
 |-- det_db
-|   |--inference.pdparams
-|   |--inference.pdimodel
+|   |--inference.pdiparams
+|   |--inference.pdmodel
 |-- rec_rcnn
-|   |--inference.pdparams
-|   |--inference.pdparams
+|   |--inference.pdiparams
+|   |--inference.pdmodel
 ```