diff --git a/src/Engine/AbstractSocketIO.php b/src/Engine/AbstractSocketIO.php
index b30745d..e647e0c 100644
--- a/src/Engine/AbstractSocketIO.php
+++ b/src/Engine/AbstractSocketIO.php
@@ -99,8 +99,8 @@ public function read()
 
         // the second byte contains the mask bit and the payload's length
         $data  .= $part = fread($this->stream, 1);
-        $length = (int)  (bin2hex($part) & ~0x80); // removing the mask bit
-        $mask   = (bool) (bin2hex($part) &  0x80);
+        $length = hexdec(bin2hex($part) & ~0x80); // removing the mask bit
+        $mask   = (bool)(bin2hex($part) &  0x80);
 
         /*
          * Here is where it is getting tricky :