diff --git a/tmux/pane-killer.md b/tmux/pane-killer.md
index 1ba9258..a9882d9 100644
--- a/tmux/pane-killer.md
+++ b/tmux/pane-killer.md
@@ -6,5 +6,7 @@ The current pane can be _killed_ (closed) using the following key binding:
 <prefix>x
 ```
 
+You will be prompted to confirm with either `y` or `n`.
+
 If there is only one pane in the current window, then the window will be
 _killed_ along with the pane.