diff --git a/tools/aws_benchmarking/README.md b/tools/aws_benchmarking/README.md
index 7d7ce7278ed49109b24d693805da1dca2ddc0968..22a468466afbcbf7cc312e714e41a3b5adf1160c 100644
--- a/tools/aws_benchmarking/README.md
+++ b/tools/aws_benchmarking/README.md
@@ -85,7 +85,7 @@ putcn/paddle_aws_client \
 --docker_image myreponame/paddle_benchmark \
 --pserver_count 2 \
 --trainer_count 2 \
---trainer_command batch_size:20,is_local:no
+--trainer_command batch_size:20,local:no,device:CPU
 ```
 
 Now just wait until you see this: