diff --git a/dotfiles/config/tmux/tmux.conf b/dotfiles/config/tmux/tmux.conf
index 93d22a4..526f642 100644
--- a/dotfiles/config/tmux/tmux.conf
+++ b/dotfiles/config/tmux/tmux.conf
@@ -107,6 +107,9 @@ set-option -g history-limit 4096
 # like CentOS 7 don't support tmux-256color so let's keep screen-256color
 # for now.
 set-option -g default-terminal "screen-256color"
+# 2022-11-07: Tell Tmux that outside terminal supports true color
+# See: https://jdhao.github.io/2018/10/19/tmux_nvim_true_color/
+set -ga terminal-overrides ",xterm-256color*:Tc"
 
 #### COLOUR (Solarized dark)