diff --git a/lib/Subtitle/SSA/Record.pm b/lib/Subtitle/SSA/Record.pm
index a333e0d..da2a4db 100644
--- a/lib/Subtitle/SSA/Record.pm
+++ b/lib/Subtitle/SSA/Record.pm
@@ -63,12 +63,12 @@ sub parse {
 
   my $PREFIX = $self->{_prefix};
   return $self->error("not looks like $PREFIX line")
-    unless $line and $line =~ m{^$PREFIX:}oi;
+    unless $line and $line =~ m{^$PREFIX:}i;
   return $self->error("passed custom fields order not ARRAY ref")
     unless $format and ref($format) eq 'ARRAY';
 
   chomp $line;
-  $line =~ s{^$PREFIX:\s*}{}oi;
+  $line =~ s{^$PREFIX:\s*}{}i;
   my $fieldcnt = scalar @{ $format };
   my @values = split /,\s*/o, $line, $fieldcnt;
   # check that values count match fields count
@@ -125,7 +125,7 @@ sub get_format_line {
   my ($self) = @_;
 
   my @keys  = @{ $self->{_format} };
-  my @names = map { $FIELDS{$_}->{name} } @keys;
+  my @names = map { $self->{_fields}->{$_}->{name} } @keys;
 
   my $line = 'Format: ' . join(', ' => @names);