diff --git a/yolov7/README.md b/yolov7/README.md
index 6e84881..b9adbde 100644
--- a/yolov7/README.md
+++ b/yolov7/README.md
@@ -48,7 +48,7 @@ cd build
 cp {WongKinYiu}/yolov7/yolov7.wts {tensorrtx}/yolov7/build
 cmake ..
 make
-sudo ./yolov7 -s [.wts] [.engine] [t/v7/x/w6/e6/d6/e6e gd gw]  // serialize model to plan file
+sudo ./yolov7 -s [.wts] [.engine] [t/v7/x/w6/e6/d6/e6e]  // serialize model to plan file
 sudo ./yolov7 -d [.engine] [image folder]  // deserialize and run inference, the images in [image folder] will be processed.
 // For example yolov7
 sudo ./yolov7 -s yolov7.wts yolov7.engine v7