diff --git a/.README.md b/.README.md
index f938ab7..ed4eff1 100644
--- a/.README.md
+++ b/.README.md
@@ -116,6 +116,10 @@ git apply --stat --apply 2604.patch
 sudo apt-get install kitty-terminfo
 
 sudo sh ~/.config/kitty/installer.sh launch=n dest=/opt
+
+sudo update-alternatives \
+  --install /usr/bin/x-terminal-emulator \
+  x-terminal-emulator /opt/kitty.app/bin/kitty 99
 ```
 
 **Note**: