diff --git a/plugin/vimux.vim b/plugin/vimux.vim
index 1751928..7e7c8f4 100644
--- a/plugin/vimux.vim
+++ b/plugin/vimux.vim
@@ -92,12 +92,6 @@ function ClearVimTmuxWindow()
 endfunction
 
 
-function VimuxCloseWindows()
-  ruby CurrentTmuxSession.new.close_other_panes
-  call VimuxClearWindow()
-  echoerr "CloseVimTmuxWindows is deprecated, use VimuxClosePanes instead."
-endfunction
-
 " deprecated!
 function CloseVimTmuxWindows()
   echoerr "ClearVimTmuxWindow is deprecated, use VimuxClosePanes instead."