diff --git a/autoload/fzf/vim.vim b/autoload/fzf/vim.vim
index d522e33..9185198 100644
--- a/autoload/fzf/vim.vim
+++ b/autoload/fzf/vim.vim
@@ -219,7 +219,7 @@ function! s:warn(message)
   return 0
 endfunction
 
-function! s:uniq(list)
+function! fzf#vim#_uniq(list)
   let visited = {}
   let ret = []
   for l in a:list
@@ -361,7 +361,7 @@ endfunction
 " ------------------------------------------------------------------
 function! fzf#vim#colors(...)
   return s:fzf('colors', {
-  \ 'source':  s:uniq(map(split(globpath(&rtp, "colors/*.vim"), "\n"),
+  \ 'source':  fzf#vim#_uniq(map(split(globpath(&rtp, "colors/*.vim"), "\n"),
   \               "substitute(fnamemodify(v:val, ':t'), '\\..\\{-}$', '', '')")),
   \ 'sink':    'colo',
   \ 'options': '+m --prompt="Colors> "'
@@ -922,7 +922,7 @@ endfunction
 
 function! fzf#vim#helptags(...)
   let sorted = sort(split(globpath(&runtimepath, '**/doc/tags'), '\n'))
-  let tags = exists('*uniq') ? uniq(sorted) : s:uniq(sorted)
+  let tags = exists('*uniq') ? uniq(sorted) : fzf#vim#_uniq(sorted)
 
   return s:fzf('helptags', {
   \ 'source':  "grep -H '.*' ".join(map(tags, 'shellescape(v:val)')).
diff --git a/autoload/fzf/vim/complete.vim b/autoload/fzf/vim/complete.vim
index 2591adc..62eb50e 100644
--- a/autoload/fzf/vim/complete.vim
+++ b/autoload/fzf/vim/complete.vim
@@ -151,9 +151,9 @@ function! fzf#vim#complete#line(...)
 endfunction
 
 function! fzf#vim#complete#buffer_line(...)
-  call fzf#vim#complete(s:extend({
+  return fzf#vim#complete(s:extend({
   \ 'prefix': '^.*$',
-  \ 'source': s:uniq(getline(1, '$'))}, get(a:000, 0, g:fzf#vim#default_layout)))
+  \ 'source': fzf#vim#_uniq(getline(1, '$'))}, get(a:000, 0, g:fzf#vim#default_layout)))
 endfunction
 
 let &cpo = s:cpo_save