diff --git a/README.md b/README.md
index cb60ea8..5ebb902 100644
--- a/README.md
+++ b/README.md
@@ -140,6 +140,8 @@ To minimize wrist strain when labeling, I adopted the method **"twice left butto
 
 ### Remove
 
+It was replaced by the shortcut **Ctrl + D**.
+
 ![ezgif-2-90fb8205437e](https://user-images.githubusercontent.com/35001605/49983945-fbddb600-ffa8-11e8-9672-f7b71e4e603b.gif)
 
 ## ETC