diff --git a/opac/ilsdi.pl b/opac/ilsdi.pl
index 05e7c5cf90..c53acc6bca 100755
--- a/opac/ilsdi.pl
+++ b/opac/ilsdi.pl
@@ -17,14 +17,15 @@
 # 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 strict;
+use warnings;
+
+use List::MoreUtils qw(any);
 
 use C4::ILSDI::Services;
 use C4::Auth;
 use C4::Output;
 use C4::Context;
-
-use List::MoreUtils qw(any);
 use XML::Simple;
 use CGI qw ( -utf8 );
 
@@ -216,7 +217,7 @@ if ( $service and any { $service eq $_ } @services ) {
 
             # Variable functions
             my $sub = do {
-#                no strict 'refs';
+                no strict 'refs';
                 my $symbol = 'C4::ILSDI::Services::' . $service;
                 \&{"$symbol"};
             };