diff --git a/4_graphic_interface.md b/4_graphic_interface.md
index dc0c6db..0ac3579 100644
--- a/4_graphic_interface.md
+++ b/4_graphic_interface.md
@@ -1,4 +1,12 @@
 gui
+---
 ```
 pacman -S cinnamon
 ```
+
+set auto-start
+--------------
+```
+echo exec cinnamon-session-cinnamon2d > ~/.xinitrc
+```
+