diff --git a/Net/LMTP.pm b/Net/LMTP.pm
index 57da2c1..5a11624 100644
--- a/Net/LMTP.pm
+++ b/Net/LMTP.pm
@@ -1,6 +1,10 @@
 package Net::LMTP;
 
+use strict;
+use warnings;
+
 use base 'Net::SMTP';
+use Net::Cmd;
 
 
 sub hello {
@@ -32,5 +36,4 @@ sub hello {
 sub _EHLO { shift->unsupported(@_);}
 sub _HELO { shift->unsupported(@_);}
 sub _LHLO { shift->command("LHLO", @_)->response() == CMD_OK }
-
 1;
\ No newline at end of file