diff --git a/phpseclib/Net/SSH2.php b/phpseclib/Net/SSH2.php
index b0c2ca16..efc4656b 100644
--- a/phpseclib/Net/SSH2.php
+++ b/phpseclib/Net/SSH2.php
@@ -2355,7 +2355,7 @@ class Net_SSH2
             return true;
         }
 
-        $this->window_size_server_to_client[NET_SSH2_CHANNEL_SHELL] = 0x7FFFFFFF;
+        $this->window_size_server_to_client[NET_SSH2_CHANNEL_SHELL] = $this->window_size;
         $packet_size = 0x4000;
 
         $packet = pack('CNa*N3',