diff --git a/plugins/tmux/tmux.plugin.zsh b/plugins/tmux/tmux.plugin.zsh
index 64687641c..2f3c3e79d 100644
--- a/plugins/tmux/tmux.plugin.zsh
+++ b/plugins/tmux/tmux.plugin.zsh
@@ -36,7 +36,7 @@ alias tkss='tmux kill-session -t'
 : ${ZSH_TMUX_FIXTERM_WITH_256COLOR:=screen-256color}
 
 # Determine if the terminal supports 256 colors
-if [[ $(echoti colors) == 256 ]]; then
+if [[ $terminfo[colors] == 256 ]]; then
   export ZSH_TMUX_TERM=$ZSH_TMUX_FIXTERM_WITH_256COLOR
 else
   export ZSH_TMUX_TERM=$ZSH_TMUX_FIXTERM_WITHOUT_256COLOR