diff --git a/doc/DOCUMENTATION.org b/doc/DOCUMENTATION.org
index 7e96b588f..0e650d44c 100644
--- a/doc/DOCUMENTATION.org
+++ b/doc/DOCUMENTATION.org
@@ -2102,6 +2102,7 @@ Windows manipulation commands (start with ~w~):
 | ~SPC w V~              | vertical split and focus new window                                         |
 | ~SPC w w~              | cycle and focus between windows                                             |
 | ~SPC w W~              | select window using [[https://github.com/abo-abo/ace-window][ace-window]]                                              |
+| ~SPC w x~              | delete a window and its current buffer (does not delete the file)           |
 
 **** Window manipulation transient state
 A convenient window manipulation transient state allows performing most of the
@@ -2186,6 +2187,7 @@ Buffer manipulation commands (start with ~b~):
 | ~SPC b s~       | switch to the =*scratch*= buffer (create it if needed)                   |
 | ~SPC b u~       | reopen the most recently killed file buffer                              |
 | ~SPC b w~       | toggle read-only (writable state)                                        |
+| ~SPC b x~       | kill the current buffer and window (does not delete the visited file)    |
 | ~SPC b Y~       | copy whole buffer to clipboard (useful when copying to a browser)        |
 | ~z f~           | Make current function or comments visible in buffer as much as possible  |