diff --git a/tmux/.tmux.conf b/tmux/.tmux.conf
index e070940..ccb3032 100644
--- a/tmux/.tmux.conf
+++ b/tmux/.tmux.conf
@@ -3,6 +3,10 @@
 set-option -g default-terminal "screen-256color"
 set -g pane-border-status
 
+# reorder window numbers when a window is deleted
+# [0 1 2] -- [delete 1] --> [0 1] instead of [0 2]
+set-option -g renumber-windows on
+
 bind c new-window -c "#{pane_current_path}"
 bind '"' split-window -c "#{pane_current_path}"
 bind % split-window -h -c "#{pane_current_path}"