diff --git a/autoload/asyncomplete/sources/file.vim b/autoload/asyncomplete/sources/file.vim
index a48375b..b8e24a8 100644
--- a/autoload/asyncomplete/sources/file.vim
+++ b/autoload/asyncomplete/sources/file.vim
@@ -24,17 +24,19 @@ function! asyncomplete#sources#file#completor(opt, ctx)
   let l:typed = a:ctx['typed']
   let l:col   = a:ctx['col']
 
-  let l:kw    = matchstr(l:typed, '<\@<!\(\.\{0,2}/\|\~\).*$')
+  let l:kw    = matchstr(l:typed, '<\@<!\(\.\{0,2}\|\~\|\$\i\+\|[^''"[\]:;|=,]\{-}\|\a:\)/[^''"[\]:;|=,]\{-}$')
   let l:kwlen = len(l:kw)
 
   if l:kwlen < 1
     return
   endif
 
-  if l:kw !~ '^\(/\|\~\)'
-    let l:cwd = expand('#' . l:bufnr . ':p:h') . '/' . l:kw
+  if l:kw =~ '^/' || l:kw =~ '^\a:'
+    let l:cwd = l:kw 
+  elseif l:kw =~ '^\$\a' ||  l:kw =~ '^\~'
+    let l:cwd = expand(l:kw)
   else
-    let l:cwd = l:kw
+    let l:cwd = expand('#' . l:bufnr . ':p:h') . '/' . l:kw
   endif
 
   if has('win32')