diff --git a/.config/i3/config b/.config/i3/config
index 4356022..e688f3b 100644
--- a/.config/i3/config
+++ b/.config/i3/config
@@ -380,6 +380,8 @@ bar {
 		status_command i3blocks -c ~/.config/i3/i3blocks.conf
 	    	position bottom 
 #	    	i3bar_command i3bar --transparency
+# it could be that you have no primary display set: set one (xrandr --output <output> --primary)
+# reference: https://i3wm.org/docs/userguide.html#_tray_output
 		    tray_output primary
 		    tray_padding 0