diff --git a/installer/data/mysql/kohastructure.sql b/installer/data/mysql/kohastructure.sql
index 4f2bd983b5..05af2cefcb 100644
--- a/installer/data/mysql/kohastructure.sql
+++ b/installer/data/mysql/kohastructure.sql
@@ -3981,9 +3981,11 @@ CREATE TABLE biblio_metadata (
     `format` VARCHAR(16) NOT NULL,
     `marcflavour` VARCHAR(16) NOT NULL,
     `metadata` LONGTEXT NOT NULL,
+    `timestamp` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
     PRIMARY KEY(id),
     UNIQUE KEY `biblio_metadata_uniq_key` (`biblionumber`,`format`,`marcflavour`),
-    CONSTRAINT `record_metadata_fk_1` FOREIGN KEY (biblionumber) REFERENCES biblio (biblionumber) ON DELETE CASCADE ON UPDATE CASCADE
+    CONSTRAINT `record_metadata_fk_1` FOREIGN KEY (biblionumber) REFERENCES biblio (biblionumber) ON DELETE CASCADE ON UPDATE CASCADE,
+    KEY `timestamp` (`timestamp`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
 
 --
@@ -3997,9 +3999,11 @@ CREATE TABLE deletedbiblio_metadata (
     `format` VARCHAR(16) NOT NULL,
     `marcflavour` VARCHAR(16) NOT NULL,
     `metadata` LONGTEXT NOT NULL,
+    `timestamp` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
     PRIMARY KEY(id),
     UNIQUE KEY `deletedbiblio_metadata_uniq_key` (`biblionumber`,`format`,`marcflavour`),
-    CONSTRAINT `deletedrecord_metadata_fk_1` FOREIGN KEY (biblionumber) REFERENCES deletedbiblio (biblionumber) ON DELETE CASCADE ON UPDATE CASCADE
+    CONSTRAINT `deletedrecord_metadata_fk_1` FOREIGN KEY (biblionumber) REFERENCES deletedbiblio (biblionumber) ON DELETE CASCADE ON UPDATE CASCADE,
+    KEY `timestamp` (`timestamp`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
 
 --