diff --git a/cataloguing/value_builder/unimarc_field_4XX.pl b/cataloguing/value_builder/unimarc_field_4XX.pl
index 0caebe1bd8..af51c2f9f1 100755
--- a/cataloguing/value_builder/unimarc_field_4XX.pl
+++ b/cataloguing/value_builder/unimarc_field_4XX.pl
@@ -310,24 +310,6 @@ sub plugin {
         if   ( $marcrecord->field('010') ) {
             $subfield_value_y = $marcrecord->field('010')->subfield("a");
         }
-        # escape the 's
-        $subfield_value_9 =~ s/'/\\'/g;
-        $subfield_value_0 =~ s/'/\\'/g;
-        $subfield_value_a =~ s/'/\\'/g;
-        $subfield_value_c =~ s/'/\\'/g;
-        $subfield_value_d =~ s/'/\\'/g;
-        $subfield_value_e =~ s/'/\\'/g;
-        $subfield_value_h =~ s/'/\\'/g;
-        $subfield_value_i =~ s/'/\\'/g;
-        $subfield_value_l =~ s/'/\\'/g;
-        $subfield_value_n =~ s/'/\\'/g;
-        $subfield_value_o =~ s/'/\\'/g;
-        $subfield_value_p =~ s/'/\\'/g;
-        $subfield_value_t =~ s/'/\\'/g;
-        $subfield_value_u =~ s/'/\\'/g;
-        $subfield_value_v =~ s/'/\\'/g;
-        $subfield_value_x =~ s/'/\\'/g;
-        $subfield_value_y =~ s/'/\\'/g;
         $template->param(
             fillinput        => 1,
             index            => scalar $query->param('index') . "",