diff --git a/README.md b/README.md
index ffb3beb..94fc39f 100644
--- a/README.md
+++ b/README.md
@@ -266,6 +266,8 @@ Keybinding         | Description
 <kbd>jk</kbd>      | Jump to a character(`ace-jump-char-mode`)
 <kbd>jl</kbd>      | Jump to the beginning of a line(`ace-jump-line-mode`)
 <kbd>JJ</kbd>      | Jump back to previous buffer(`prelude-switch-to-previous-buffer`)
+<kbd>kk</kbd>      | Delete tabs and spaces around point except one(`just-one-space`)
+<kbd>KK</kbd>      | Delete tabs and spaces around point(`delete-horizontal-space`)
 <kbd>uu</kbd>      | View edits as a tree(`undo-tree-visualize`)
 
 ### Automatic package installation
diff --git a/core/prelude-global-keybindings.el b/core/prelude-global-keybindings.el
index 7d7ccfd..d937ded 100644
--- a/core/prelude-global-keybindings.el
+++ b/core/prelude-global-keybindings.el
@@ -118,6 +118,7 @@
 (key-chord-define-global "jl" 'ace-jump-line-mode)
 (key-chord-define-global "jk" 'ace-jump-char-mode)
 (key-chord-define-global "kk" 'just-one-space)
+(key-chord-define-global "KK" 'delete-horizontal-space)
 (key-chord-define-global "JJ" 'prelude-switch-to-previous-buffer)
 (key-chord-define-global "uu" 'undo-tree-visualize)