diff --git a/lz16/liblz16.lua b/lz16/liblz16.lua
index 80cf934..a2faaa7 100644
--- a/lz16/liblz16.lua
+++ b/lz16/liblz16.lua
@@ -37,7 +37,7 @@ local function readBuffer(fi)
  function stream.close()
   fi:close()
  end
- return buffer.new("r",stream)
+ return buffer.new("rb",stream)
 end
 
 local function writeBuffer(fo)
@@ -51,7 +51,7 @@ local function writeBuffer(fo)
   fo:close()
  end
  fo:write("lz16") -- write header
- return buffer.new("w",stream)
+ return buffer.new("wb",stream)
 end
 
 function lz16.buffer(stream)