diff --git a/tmux.conf b/tmux.conf
index 93ae10e..a014749 100644
--- a/tmux.conf
+++ b/tmux.conf
@@ -30,6 +30,7 @@ bind C-p previous-window
 bind C-l last-window
 bind C-s choose-session
 bind C-w choose-window
+bind C-k confirm-before kill-window
 
 # Tmux command prompt
 bind m command-prompt