diff --git a/docs/Normal.md b/docs/Normal.md
index 0435f5b..027bf51 100644
--- a/docs/Normal.md
+++ b/docs/Normal.md
@@ -80,7 +80,7 @@ And build:
 ``` shell
 export root=${PWD}
 cd src/detect/normal
-mkdir build
+mkdir build && cd build
 cmake ..
 make
 mv yolov8 ${root}