diff --git a/doc/easymotion.txt b/doc/easymotion.txt
index ae8fabf..b95ac48 100644
--- a/doc/easymotion.txt
+++ b/doc/easymotion.txt
@@ -111,8 +111,6 @@ Note: The default leader has been changed to <Leader><Leader> to avoid
     <Leader>N            | Jump to latest "/" or "?" backward. See |N|.
     <Leader>s            | Find(Search) {char} forward and backward.
                          | See |f| and |F|.
-    <Leader>S            | Beginning of word forward and backward.
-                         | See |w| and |b|.
 
 See |easymotion-leader-key| and |mapleader| for details about the leader key.
 See |easymotion-custom-mappings| for customizing the default mappings.
@@ -138,7 +136,6 @@ EasyMotion <Plug> table                                *easymotion-plug-table*
     <Plug>(easymotion-n) | <Leader>n
     <Plug>(easymotion-N) | <Leader>N
     <Plug>(easymotion-s) | <Leader>s
-    <Plug>(easymotion-S) | <Leader>S
 
     More <Plug> Mapping Table         | (No assignment by default)
     ----------------------------------|---------------------------------
diff --git a/plugin/EasyMotion.vim b/plugin/EasyMotion.vim
index 89a962f..4e34dc6 100644
--- a/plugin/EasyMotion.vim
+++ b/plugin/EasyMotion.vim
@@ -198,16 +198,12 @@ call s:find_motion_map_helper({
 
 " -- Word Motion {{{
 " Word: {{{
-noremap  <silent><Plug>(easymotion-w)      :<C-u>call EasyMotion#WB(0,0)<CR>
-xnoremap <silent><Plug>(easymotion-w) <Esc>:<C-u>call EasyMotion#WB(1,0)<CR>
-noremap  <silent><Plug>(easymotion-b)      :<C-u>call EasyMotion#WB(0,1)<CR>
-xnoremap <silent><Plug>(easymotion-b) <Esc>:<C-u>call EasyMotion#WB(1,1)<CR>
-
-" backward compatibility
-noremap  <silent><Plug>(easymotion-S)         :<C-u>call EasyMotion#WB(0,2)<CR>
-xnoremap <silent><Plug>(easymotion-S)    <Esc>:<C-u>call EasyMotion#WB(1,2)<CR>
-noremap  <silent><Plug>(easymotion-bd-w)      :<C-u>call EasyMotion#WB(0,2)<CR>
-xnoremap <silent><Plug>(easymotion-bd-w) <Esc>:<C-u>call EasyMotion#WB(1,2)<CR>
+noremap  <silent><Plug>(easymotion-w)          :<C-u>call EasyMotion#WB(0,0)<CR>
+xnoremap <silent><Plug>(easymotion-w)     <Esc>:<C-u>call EasyMotion#WB(1,0)<CR>
+noremap  <silent><Plug>(easymotion-b)          :<C-u>call EasyMotion#WB(0,1)<CR>
+xnoremap <silent><Plug>(easymotion-b)     <Esc>:<C-u>call EasyMotion#WB(1,1)<CR>
+noremap  <silent><Plug>(easymotion-bd-w)       :<C-u>call EasyMotion#WB(0,2)<CR>
+xnoremap <silent><Plug>(easymotion-bd-w)  <Esc>:<C-u>call EasyMotion#WB(1,2)<CR>
 "}}}
 
 " WORD: {{{
diff --git a/t/easymotion_spec.vim b/t/easymotion_spec.vim
index ccdf0b8..e7d7642 100644
--- a/t/easymotion_spec.vim
+++ b/t/easymotion_spec.vim
@@ -204,9 +204,6 @@ describe 'Default settings'
         Expect maparg('<Plug>(easymotion-bd-w)', 'n') ==# ':<C-U>call EasyMotion#WB(0,2)<CR>'
         Expect maparg('<Plug>(easymotion-bd-w)', 'o') ==# ':<C-U>call EasyMotion#WB(0,2)<CR>'
         Expect maparg('<Plug>(easymotion-bd-w)', 'v') ==# '<Esc>:<C-U>call EasyMotion#WB(1,2)<CR>'
-        Expect maparg('<Plug>(easymotion-S)', 'n') ==# ':<C-U>call EasyMotion#WB(0,2)<CR>'
-        Expect maparg('<Plug>(easymotion-S)', 'o') ==# ':<C-U>call EasyMotion#WB(0,2)<CR>'
-        Expect maparg('<Plug>(easymotion-S)', 'v') ==# '<Esc>:<C-U>call EasyMotion#WB(1,2)<CR>'
         " }}}
 
         " WORD Motion: {{{