diff --git a/deploy/cpp_infer/readme.md b/deploy/cpp_infer/readme.md
index ee5a9ed4b9aa16b76836dc01096ae132fead56dd..2beb1b64f14ba817850721f356509d9cf721494d 100644
--- a/deploy/cpp_infer/readme.md
+++ b/deploy/cpp_infer/readme.md
@@ -140,11 +140,11 @@ 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
 ```