diff --git a/autoload/SpaceVim/default.vim b/autoload/SpaceVim/default.vim
index 6c8f72463..6ccc9bd86 100644
--- a/autoload/SpaceVim/default.vim
+++ b/autoload/SpaceVim/default.vim
@@ -216,7 +216,7 @@ function! SpaceVim#default#SetMappings() abort
 
   " Improve scroll, credits: https://github.com/Shougo
   nnoremap <expr> zz (winline() == (winheight(0)+1) / 2) ?
-        \ 'zt' : (winline() == 1) ? 'zb' : 'zz'
+        \ 'zt' : (winline() == &scrolloff + 1) ? 'zb' : 'zz'
   noremap <expr> <C-f> max([winheight(0) - 2, 1])
         \ ."\<C-d>".(line('w$') >= line('$') ? "L" : "H")
   noremap <expr> <C-b> max([winheight(0) - 2, 1])