diff --git a/countries/install/tables.sql b/countries/install/tables.sql
index d0acdfa..123350a 100644
--- a/countries/install/tables.sql
+++ b/countries/install/tables.sql
@@ -11,6 +11,7 @@ CREATE TABLE `country_networks` (
   `ip_country`             CHAR(2)           NOT NULL,
   `ip_network`             VARCHAR(15)       NOT NULL,
   `ip_network_bitmask`     TINYINT UNSIGNED  NOT NULL,
+  `LastUpdated` TIMESTAMP on update CURRENT_TIMESTAMP NOT NULL,
   PRIMARY KEY (
     `ip_country`,
     `ip_network`,