diff --git a/obfscp/scp.go b/obfscp/scp.go
index 8eb5e05..986a373 100644
--- a/obfscp/scp.go
+++ b/obfscp/scp.go
@@ -611,6 +611,12 @@ Options:
       Specifies the password for log in remote machine
 
     -r recursively copy the directories
+
+    -tls
+      connect to server via TLS
+
+    -tls-insecure
+      do not verify server's certificate
 `
 	fmt.Printf("%s", usageStr)
 	os.Exit(1)
diff --git a/obfssh/ssh.go b/obfssh/ssh.go
index 8fe1d06..156a593 100644
--- a/obfssh/ssh.go
+++ b/obfssh/ssh.go
@@ -390,6 +390,12 @@ Options:
       Specifies the max error count for keep alive,
       when the count reach the max, the connection will
       be abort.
+	
+    -tls
+       connect to server via TLS
+
+    -tls-insecure
+       do not verify server's tls ceritificate
 `
 	fmt.Printf("%s", usageStr)
 	os.Exit(1)