diff --git a/phpseclib/Net/SSH1.php b/phpseclib/Net/SSH1.php
index 69669aa7..67e09652 100644
--- a/phpseclib/Net/SSH1.php
+++ b/phpseclib/Net/SSH1.php
@@ -428,7 +428,7 @@ class Net_SSH1 {
      * @var Array
      * @access private
      */
-    var $interactive_buffer = '';
+    var $interactiveBuffer = '';
 
     /**
      * Default Constructor.