diff --git a/phpseclib/Net/SFTP.php b/phpseclib/Net/SFTP.php
index ec84cba3..2f38e7d8 100644
--- a/phpseclib/Net/SFTP.php
+++ b/phpseclib/Net/SFTP.php
@@ -3315,7 +3315,10 @@ class SFTP extends SSH2
         // SFTP packet type and data payload
         while ($tempLength > 0) {
             $temp = $this->get_channel_packet(self::CHANNEL, true);
-            if (is_bool($temp)) {
+            if ($temp === true) {
+                if ($this->channel_status[self::CHANNEL] === NET_SSH2_MSG_CHANNEL_CLOSE) {
+                    $this->channel_close = true;
+                }
                 $this->packet_type = false;
                 $this->packet_buffer = '';
                 return false;