diff --git a/DDNS.pm b/DDNS.pm
index 45b2323..0687a4d 100644
--- a/DDNS.pm
+++ b/DDNS.pm
@@ -13,7 +13,7 @@ our $VERSION = '0.4';
 our $misterdns = '5.78.68.64';
 our $defaultmaster = '5.78.68.64'; # could be v4 and v6 like '198.251.79.234;2607:f1c0:86e:b66f:6b86:babb:c367:b0dc'
 our $keyfile = '/etc/bind/zone-management.key';
-    
+
 sub new {
     my $me = shift;
     my %opts = @_;