diff --git a/README.md b/README.md
index 45e196b..b0ceb08 100644
--- a/README.md
+++ b/README.md
@@ -144,6 +144,13 @@ When using ace-window, if the action character is followed by a string,
 then `ace-window` will be invoked again to select the target window for
 the action.  Otherwise, the current window is selected.
 
+If for instance you would like to close a window, when several are open,
+you can do:
+
+	M-o ? x n 
+
+Where `n`  is the window number, in order to close window number `n`.
+
 ### `aw-minibuffer-flag`
 
 When non-nil, also display `ace-window-mode` string in the minibuffer