diff --git a/plugins/tmux/tmux.plugin.zsh b/plugins/tmux/tmux.plugin.zsh
index ff7de746b..4a7986389 100644
--- a/plugins/tmux/tmux.plugin.zsh
+++ b/plugins/tmux/tmux.plugin.zsh
@@ -56,7 +56,8 @@ function _zsh_tmux_plugin_run() {
     return $?
   fi
 
-  local -a tmux_cmd=(command tmux)
+  local -a tmux_cmd
+  tmux_cmd=(command tmux)
   [[ "$ZSH_TMUX_ITERM2" == "true" ]] && tmux_cmd+=(-CC)
 
   # Try to connect to an existing session.