diff --git a/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm b/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm
index cde124940b..5c4eb62463 100644
--- a/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm
+++ b/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm
@@ -546,7 +546,7 @@ our %index_field_convert = (
     'pubdate' => 'date-of-publication',
     'acqdate' => 'date-of-acquisition',
     'date/time-last-modified' => 'date-time-last-modified',
-    'dtlm' => 'date/time-last-modified',
+    'dtlm' => 'date-time-last-modified',
     'diss' => 'dissertation-information',
     'nb' => 'isbn',
     'ns' => 'issn',
diff --git a/installer/data/mysql/atomicupdate/bug_22524.perl b/installer/data/mysql/atomicupdate/bug_22524.perl
new file mode 100644
index 0000000000..af765f8e60
--- /dev/null
+++ b/installer/data/mysql/atomicupdate/bug_22524.perl
@@ -0,0 +1,8 @@
+$DBversion = 'XXX'; # will be replaced by the RM
+if( CheckVersion( $DBversion ) ) {
+    $dbh->do( "UPDATE `search_field` SET `name` = 'date-time-last-modified', `label` = 'date-time-last-modified' WHERE `name` = 'date/time-last-modified'" );
+
+    # Always end with this (adjust the bug info)
+    SetVersion( $DBversion );
+    print "Upgrade to $DBversion done (Bug 22524 - Fix date/time-last-modified search with Elasticsearch)\n";
+}
\ No newline at end of file