diff --git a/misc/link_bibs_to_authorities.pl b/misc/link_bibs_to_authorities.pl
index 78b0dd2687..0315518168 100755
--- a/misc/link_bibs_to_authorities.pl
+++ b/misc/link_bibs_to_authorities.pl
@@ -1,7 +1,21 @@
 #!/usr/bin/perl
 
-use strict;
-use warnings;
+# This file is part of Koha.
+#
+# Koha is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# Koha is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Koha; if not, see <http://www.gnu.org/licenses>.
+
+use Modern::Perl;
 
 use Koha::Script;
 use C4::Context;
@@ -37,7 +51,7 @@ my $auth_limit;
 my $bib_limit;
 my $commit = 100;
 my $tagtolink;
-my $allowrelink = C4::Context->preference("CatalogModuleRelink") || '';
+my $allowrelink = C4::Context->preference("LinkerRelink") // '';
 
 my $result = GetOptions(
     'v|verbose'      => \$verbose,