diff --git a/phpseclib/Net/SCP.php b/phpseclib/Net/SCP.php
index c9be7894..5f9517e1 100644
--- a/phpseclib/Net/SCP.php
+++ b/phpseclib/Net/SCP.php
@@ -170,7 +170,9 @@ class Net_SCP {
             return false;
         }
 
-        $this->ssh->exec('scp -t ' . $remote_file, false); // -t = to
+        if (!$this->ssh->exec('scp -t ' . $remote_file, false)) { // -t = to
+            return false;
+        }
 
         $temp = $this->_receive();
         if ($temp !== chr(0)) {
@@ -239,7 +241,9 @@ class Net_SCP {
             return false;
         }
 
-        $this->ssh->exec('scp -f ' . $remote_file, false); // -f = from
+        if (!$this->ssh->exec('scp -f ' . $remote_file, false)) { // -f = from
+            return false;
+        }
 
         $this->_send("\0");