diff --git a/README.md b/README.md
index e588d02..9c18b61 100644
--- a/README.md
+++ b/README.md
@@ -138,7 +138,8 @@ require'fzf-lua'.setup {
   win_width           = 0.80,         -- window width
   win_row             = 0.30,         -- window row position (0=top, 1=bottom)
   win_col             = 0.50,         -- window col position (0=left, 1=right)
-  win_border          = true,         -- window border?
+  -- win_border          = false,         -- window border? or borderchars?
+  win_border          = { '╭', '─', '╮', '│', '╯', '─', '╰', '│' },
   fzf_args            = '',           -- adv: fzf extra args, empty unless adv
   fzf_layout          = 'reverse',    -- fzf '--layout='
   preview_cmd         = '',           -- 'head -n $FZF_PREVIEW_LINES',
diff --git a/lua/fzf-lua/init.lua b/lua/fzf-lua/init.lua
index 63ca52f..ca20b9a 100644
--- a/lua/fzf-lua/init.lua
+++ b/lua/fzf-lua/init.lua
@@ -10,7 +10,7 @@ local M = {}
 
 local getopt = function(opts, key, expected_type, default)
   if opts and opts[key] ~= nil then
-    if type(opts[key]) == expected_type then
+    if expected_type == "any" or type(opts[key]) == expected_type then
         return opts[key]
     else
       utils.info(
@@ -50,7 +50,7 @@ function M.setup(opts)
     win_width           = "number",
     win_row             = "number",
     win_col             = "number",
-    win_border          = "boolean",
+    win_border          = "any",    -- boolean|table (borderchars)
     default_prompt      = "string",
     fzf_args            = "string",
     fzf_layout          = "string",