diff --git a/lib/_stream_readable.js b/lib/_stream_readable.js
index f76b2dbefba059..019208be337c44 100644
--- a/lib/_stream_readable.js
+++ b/lib/_stream_readable.js
@@ -402,7 +402,7 @@ function onEofChunk(stream, state) {
     var chunk = state.decoder.end();
     if (chunk && chunk.length) {
       state.buffer.push(chunk);
-      state.length += state.objectMode ? 1 : chunk.length;
+      state.length += state.objectMode ? 1 : Buffer.byteLength(chunk, state.encoding);
     }
   }
   state.ended = true;