diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/authorities/authorities.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/authorities/authorities.tt
index 29b373dd35..a5e668637e 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/authorities/authorities.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/authorities/authorities.tt
@@ -1,5 +1,6 @@
 [% USE raw %]
 [% USE Asset %]
+[% USE To %]
 [% INCLUDE 'doc-head-open.inc' %]
 <title>Koha &rsaquo; Authorities &rsaquo; [% IF ( authid ) %]Modify authority #[% authid | html %] ([% authtypetext | html %])[% ELSE %]Adding authority ([% authtypetext | html %])[% END %]</title>
 [% INCLUDE 'doc-head-close.inc' %]
@@ -69,7 +70,7 @@ function AreMandatoriesNotOk(){
     		[% FOREACH subfield_loo IN innerloo.subfield_loop %]
     			[% IF ( subfield_loo.mandatory ) %]mandatories.push("[% subfield_loo.id | html %]");
                     tab.push("[% BIG_LOO.number | html %]");
-                    label.push("[% subfield_loo.marc_lib | $raw |replace("'", "\'") |replace('"', '\"') |replace('\n', '\\n') |replace('\r', '\\r') %]");
+                    label.push("[% To.json(subfield_loo.marc_lib) | html %]");
     			[% END %]
 			[% END %]
 		[% END %]