diff --git a/readme.md b/readme.md
index 7f05262..f41f965 100644
--- a/readme.md
+++ b/readme.md
@@ -128,7 +128,7 @@ Run training on multi-gpu
 CUDA_VISIBLE_DEVICES=0,1,2,3 python -m core.ddp --tag debug
 ```
 
-Run training on single-GPU
+Run training on single-gpu
 
 ```
 CUDA_VISIBLE_DEVICES=0 python -m core.ddp --tag debug