diff --git a/TimeSeries.pm b/TimeSeries.pm
index 91ac301..f236e3e 100644
--- a/TimeSeries.pm
+++ b/TimeSeries.pm
@@ -6,7 +6,7 @@ use Data::Dumper;
 use HTTP::Date qw(parse_date);
 use Time::Local qw(timegm_nocheck);
 
-$VERSION = do { my @r=(q$Revision: 1.6 $=~/\d+/g);sprintf "%d."."%02d"x$#r,@r};
+$VERSION = do { my @r=(q$Revision: 1.7 $=~/\d+/g);sprintf "%d."."%02d"x$#r,@r};
 
 sub new {
     my ($class, %opts) = @_;
@@ -54,7 +54,7 @@ sub legend {
     my ($self, @legend) = @_;
     my $oldlegend = $self->{legend};
     $self->{legend} = [@legend] if (@legend);
-    return @$oldlegend;
+    return $oldlegend ? @$oldlegend : ();
 }
 
 sub style {