diff --git a/module/fs.lua b/module/fs.lua
index c1aa163..0287eba 100644
--- a/module/fs.lua
+++ b/module/fs.lua
@@ -68,7 +68,11 @@ function fs.copy(from,to) -- string string -- boolean -- copies a file from *fro
  if not of or not df then
   return false
  end
- df:write(of:read("*a"))
+ local tmp
+ repeat
+  tmp = of:read(2048)
+  df:write(tmp or "")
+ until not tmp
  df:close()
  of:close()
  return true