diff --git a/doc/DOCUMENTATION.org b/doc/DOCUMENTATION.org
index a1f625ac8..e2e19a924 100644
--- a/doc/DOCUMENTATION.org
+++ b/doc/DOCUMENTATION.org
@@ -2038,6 +2038,8 @@ Windows manipulation commands (start with ~w~):
 |------------------------+-----------------------------------------------------------------------------|
 | ~SPC w TAB~            | switch to alternate window in the current frame (switch back and forth)     |
 | ~SPC w =~              | balance split windows                                                       |
+| ~SPC w _~              | maximize window horizontally                                                |
+| ~SPC w \vert~          | maximize window vertically                                                  |
 | ~SPC w b~              | force the focus back to the minibuffer                                      |
 | ~SPC w c~              | maximize/minimize a window and center it                                    |
 | ~SPC w C~              | maximize/minimize a window and center it using [[https://github.com/abo-abo/ace-window][ace-window]]                   |