diff --git a/lua/telescope/builtin/__internal.lua b/lua/telescope/builtin/__internal.lua
index f9960ab..00f2205 100644
--- a/lua/telescope/builtin/__internal.lua
+++ b/lua/telescope/builtin/__internal.lua
@@ -517,7 +517,7 @@ internal.oldfiles = function(opts)
   end
 
   if opts.cwd_only then
-    local cwd = vim.loop.cwd() .. "/"
+    local cwd = vim.loop.cwd() .. utils.get_separator()
     cwd = cwd:gsub([[\]], [[\\]])
     results = vim.tbl_filter(function(file)
       return vim.fn.matchstrpos(file, cwd)[2] ~= -1