diff --git a/ssh/doc.go b/ssh/doc.go
index 405449c6..b0ce681d 100644
--- a/ssh/doc.go
+++ b/ssh/doc.go
@@ -3,11 +3,10 @@
 // license that can be found in the LICENSE file.
 
 /*
-Package ssh in sshpiper is compatible with golang.org/x/crypto/ssh.
+SSHPiper provides additional APIs to ssh that allows you to build a piped ssh connection.
+Also, package ssh in sshpiper is compatible with golang.org/x/crypto/ssh.
 All func and datatype left unchanged. You can use it like golang.org/x/crypto/ssh.
 
-Also, sshpiper provide additional APIs that allows you to build a piped ssh connection.
-
 SSH is a transport security protocol, an authentication protocol and a
 family of application protocols. The most typical application level
 protocol is a remote shell and this is specifically implemented.  However,