diff --git a/apps/contacts/appinfo/update.php b/apps/contacts/appinfo/update.php
new file mode 100644
index 0000000000000000000000000000000000000000..873899f578bcecc44a7851c07b85b9f99695c5a8
--- /dev/null
+++ b/apps/contacts/appinfo/update.php
@@ -0,0 +1,25 @@
+<?php
+
+$installedVersion=OCP\Config::getAppValue('contacts', 'installed_version');
+if (version_compare($installedVersion, '0.2.90', '<')) {
+	// First set all address books in-active.
+	$stmt = OCP\DB::prepare( 'UPDATE *PREFIX*contacts_addressbooks SET active=0' );
+	$result = $stmt->execute(array());
+	
+	// Then get all the active address books.
+	$stmt = OCP\DB::prepare( 'SELECT userid,configvalue FROM *PREFIX*preferences WHERE appid=\'contacts\' AND configkey=\'openaddressbooks\'' );
+	$result = $stmt->execute(array());
+	
+	// Prepare statement for updating the new 'active' field.
+	$stmt = OCP\DB::prepare( 'UPDATE *PREFIX*contacts_addressbooks SET active=? WHERE id=? AND userid=?' );
+	while( $row = $result->fetchRow()) {
+		$ids = explode(';', $row['configvalue']);
+		foreach($ids as $id) {
+			$r = $stmt->execute(array(1, $id, $row['userid']));
+		}
+	}
+	
+	// Remove the old preferences.
+	$stmt = OCP\DB::prepare( 'DELETE FROM *PREFIX*preferences WHERE appid=\'contacts\' AND configkey=\'openaddressbooks\'' );
+	$result = $stmt->execute(array());
+}