diff --git a/tmux/tmux.conf b/tmux/tmux.conf
index 82d5d98..cf50b2b 100644
--- a/tmux/tmux.conf
+++ b/tmux/tmux.conf
@@ -36,7 +36,8 @@ bind e setw synchronize-panes on
 bind E setw synchronize-panes off
 
 # set first window to index 1 (not 0) to map more to the keyboard layout...
-set -g base-index 1
+set-option -g base-index 1
+set-window-option -g pane-base-index 1
 
 # color scheme (styled as vim-powerline)
 set -g status-left-length 52