diff --git a/lib/yapople.js b/lib/yapople.js
index 11ce2cb..f5d648e 100644
--- a/lib/yapople.js
+++ b/lib/yapople.js
@@ -158,7 +158,7 @@ function onData(data) {
     if (typeof this.flow !== 'undefined') { // for first and all next data chunks
         this.flow = Buffer.concat([this.flow, data]); // append chunk to buffer
 
-        if (this._command.cmd === state.RETR && sData.slice(-5) !== '\r\n.\r\n') return;
+        if (this._command.cmd === state.RETR && this.flow.slice(-5).toString() !== '\r\n.\r\n') return;
         if (
             this.flow.slice(this.flow.length - 3).toString() === '.\r\n' ||
             sData.substr(-3) === '.\r\n'
diff --git a/package.json b/package.json
index 64d7941..016f899 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
  "name": "yapople",
-  "version": "0.4.8",
+  "version": "0.4.9",
   "author": "Andrew D.Laptev <a.d.laptev@gmail.com>",
   "description": "Yet another POP3 library",
   "main": "lib/yapople.js",