diff --git a/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm b/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm
index ad339ae7e4..c55810c2b1 100644
--- a/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm
+++ b/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm
@@ -392,13 +392,17 @@ sub _build_field_match_boost_query {
     my $indexes  = $params->{indexes};
     my $operands = $params->{operands};
 
+    my $boost_amount = C4::Context->preference('ElasticsearchBoostFieldMatchAmount');
     my @boost_query;
+    my $built_boost;
     my $ea = each_array( @$operands, @$indexes );
     while ( my ( $operand, $index ) = $ea->() ) {
         next unless $operand;
         $index = $index->{field} if ref $index eq 'HASH';
         $index = 'title-cover'   if ( !$index || $index eq 'kw' || $index eq 'ti' || $index eq 'title' );
-        push @boost_query, { match => { $index => { query => $operand } } };
+        $built_boost = { match => { $index => { query => $operand } } };
+        $built_boost->{match}->{$index}->{boost} = $boost_amount if $boost_amount;
+        push @boost_query, $built_boost;
     }
     return \@boost_query;
 }
diff --git a/installer/data/mysql/atomicupdate/bug_40853.pl b/installer/data/mysql/atomicupdate/bug_40853.pl
new file mode 100755
index 0000000000..9327e677b4
--- /dev/null
+++ b/installer/data/mysql/atomicupdate/bug_40853.pl
@@ -0,0 +1,21 @@
+use Modern::Perl;
+use Koha::Installer::Output qw(say_warning say_success say_info);
+
+return {
+    bug_number  => "40853",
+    description =>
+        "Add ElasticsearchBoostFieldMatchAmount to allow for increasing the weight of the additional field boost search",
+    up => sub {
+        my ($args) = @_;
+        my ( $dbh, $out ) = @$args{qw(dbh out)};
+
+        $dbh->do(
+            q{
+            INSERT IGNORE INTO systempreferences ( `variable`, `value` ) VALUES
+            ('ElasticsearchBoostFieldMatchAmount', '0' )
+        }
+        );
+
+        say $out "Added new system preference 'ElasticsearchBoostFieldMatchAmount'";
+    },
+};
diff --git a/installer/data/mysql/mandatory/sysprefs.sql b/installer/data/mysql/mandatory/sysprefs.sql
index d321bf1213..13faac930f 100644
--- a/installer/data/mysql/mandatory/sysprefs.sql
+++ b/installer/data/mysql/mandatory/sysprefs.sql
@@ -1,3 +1,4 @@
+<<<<<<< HEAD
 INSERT INTO systempreferences ( `variable`, `value` ) VALUES
 ('1PageOrderPDFText', 'Order number must appear on all related correspondence, shipping papers and invoices. Notify us immediately if \n you are unable to supply item(s).'),
 ('AccessControlAllowOrigin', ''),
@@ -240,6 +241,7 @@ INSERT INTO systempreferences ( `variable`, `value` ) VALUES
 ('EdifactLSL', 'ccode'),
 ('EdifactLSQ', 'location'),
 ('ElasticsearchBoostFieldMatch', '0'),
+('ElasticsearchBoostFieldMatchAmount', '0'),
 ('ElasticsearchCrossFields', '1'),
 ('ElasticsearchIndexStatus_authorities', '0'),
 ('ElasticsearchIndexStatus_biblios', '0'),
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences/searching.pref b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences/searching.pref
index 99c045d696..84c718d7b0 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences/searching.pref
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences/searching.pref
@@ -101,7 +101,9 @@ Searching:
               choices:
                   1: Enable
                   0: Disable
-            - "adding a second 'match' field search to the ES query to boost relevancy. Keyword and title fields will be boosted with title-cover, other fields will boost directly."
+            - "adding a second 'match' field search to the ES query to boost relevancy by"
+            - pref: ElasticsearchBoostFieldMatchAmount
+            - "Keyword and title fields will be boosted with title-cover, other fields will boost directly."
             - "This will not boost CCL style searches, only standard or advanced searches."
         -
             - pref: SavedSearchFilters