diff --git a/.tmux.conf b/.tmux.conf
index c6d2b73..93d22a4 100644
--- a/.tmux.conf
+++ b/.tmux.conf
@@ -102,9 +102,10 @@ set-option -g status-right '#[fg=colour47]#H #[fg=red]#(cut -d " " -f 1-3 /proc/
 # scrollback buffer
 set-option -g history-limit 4096
 
-# hijack the TERM variable for shells inside tmux
-# According to the tmux FAQ this MUST be "screen" or a derivative
-# http://tmux.svn.sourceforge.net/viewvc/tmux/trunk/FAQ
+# 2020-07-10: According to the tmux FAQ, inside tmux TERM must be "screen",
+# "tmux" or similar (such as "tmux-256color"). Systems with older terminfo
+# like CentOS 7 don't support tmux-256color so let's keep screen-256color
+# for now.
 set-option -g default-terminal "screen-256color"
 
 #### COLOUR (Solarized dark)