diff --git a/autoload/fzf/vim.vim b/autoload/fzf/vim.vim
index 4cd90cc..79164ff 100644
--- a/autoload/fzf/vim.vim
+++ b/autoload/fzf/vim.vim
@@ -44,21 +44,34 @@ if s:is_win
   let s:bin.preview = 'bash '.escape(s:bin.preview, '\')
 endif
 
-function! s:merge_opts(dict, eopts)
+function! s:extend_opts(dict, eopts, prepend)
   if empty(a:eopts)
     return
   endif
   if has_key(a:dict, 'options')
     if type(a:dict.options) == s:TYPE.list && type(a:eopts) == s:TYPE.list
-      call extend(a:dict.options, a:eopts)
+      if a:prepend
+        let a:dict.options = extend(copy(a:eopts), a:dict.options)
+      else
+        call extend(a:dict.options, a:eopts)
+      endif
     else
-      let a:dict.options = join(map([a:dict.options, a:eopts], 'type(v:val) == s:TYPE.list ? join(map(copy(v:val), "fzf#shellescape(v:val)")) : v:val'))
+      let all_opts = a:prepend ? [a:eopts, a:dict.options] : [a:dict.options, a:eopts]
+      let a:dict.options = join(map(all_opts, 'type(v:val) == s:TYPE.list ? join(map(copy(v:val), "fzf#shellescape(v:val)")) : v:val'))
     endif
   else
     let a:dict.options = a:eopts
   endif
 endfunction
 
+function! s:merge_opts(dict, eopts)
+  return s:extend_opts(a:dict, a:eopts, 0)
+endfunction
+
+function! s:prepend_opts(dict, eopts)
+  return s:extend_opts(a:dict, a:eopts, 1)
+endfunction
+
 " [[options to wrap], preview window expression, [toggle-preview keys...]]
 function! fzf#vim#with_preview(...)
   " Default options
@@ -1173,7 +1186,7 @@ endfunction
 
 function! s:complete_trigger()
   let opts = copy(s:opts)
-  call s:merge_opts(opts, ['+m', '-q', s:query])
+  call s:prepend_opts(opts, ['+m', '-q', s:query])
   let opts['sink*'] = s:function('s:complete_insert')
   let s:reducer = s:pluck(opts, 'reducer', s:function('s:first_line'))
   call fzf#run(opts)