diff --git a/phpseclib/Net/SCP.php b/phpseclib/Net/SCP.php
index 389265eb..51c3cca1 100644
--- a/phpseclib/Net/SCP.php
+++ b/phpseclib/Net/SCP.php
@@ -129,7 +129,7 @@ class Net_SCP
         }
 
         switch (strtolower(get_class($ssh))) {
-            case'net_ssh2':
+            case 'net_ssh2':
                 $this->mode = NET_SCP_SSH2;
                 break;
             case 'net_ssh1':