diff --git a/Koha/SearchEngine/Elasticsearch.pm b/Koha/SearchEngine/Elasticsearch.pm
index 577dcda12b..483dada4b3 100644
--- a/Koha/SearchEngine/Elasticsearch.pm
+++ b/Koha/SearchEngine/Elasticsearch.pm
@@ -58,6 +58,7 @@ use Search::Elasticsearch::Role::Cxn;
 }
 
 use Try::Tiny qw( catch try );
+use JSON::PP ();
 use YAML::XS;
 
 use List::Util qw( sum0 );
diff --git a/t/db_dependent/Koha/SearchEngine/Elasticsearch.t b/t/db_dependent/Koha/SearchEngine/Elasticsearch.t
index 5f0564d9fe..0512100b46 100755
--- a/t/db_dependent/Koha/SearchEngine/Elasticsearch.t
+++ b/t/db_dependent/Koha/SearchEngine/Elasticsearch.t
@@ -28,6 +28,7 @@ use t::lib::TestBuilder;
 
 use Test::MockModule;
 
+use JSON::PP ();
 use MARC::Record;
 use Try::Tiny;
 use List::Util qw( any );
@@ -144,7 +145,7 @@ subtest 'get_elasticsearch_settings() tests' => sub {
 
 subtest 'get_elasticsearch_mappings() tests' => sub {
 
-    plan tests => 3;
+    plan tests => 5;
 
     my $mappings;
 
@@ -206,6 +207,14 @@ subtest 'get_elasticsearch_mappings() tests' => sub {
         'Field mappings parsed correctly for sort for callnumber type'
     );
     is( $mappings->{properties}{isbn__sort}{index}, 'false', 'Field mappings parsed correctly' );
+    is(
+        $mappings->{date_detection}, JSON::PP::false,
+        'date_detection disabled at mapping root'
+    );
+    is(
+        $mappings->{numeric_detection}, JSON::PP::false,
+        'numeric_detection disabled at mapping root'
+    );
 
 };