diff --git a/db_scripts/diff/15019.down b/db_scripts/diff/15019.down
new file mode 100644
index 00000000..a1248fe8
--- /dev/null
+++ b/db_scripts/diff/15019.down
@@ -0,0 +1,5 @@
+USE billing;
+
+ALTER TABLE `billing`.`admins`
+  DROP COLUMN `ssl_client_m_serial`,
+  DROP INDEX `ssl_client_m_serial_UNIQUE`;
diff --git a/db_scripts/diff/15019.up b/db_scripts/diff/15019.up
index 68c96a6b..955a19e3 100644
--- a/db_scripts/diff/15019.up
+++ b/db_scripts/diff/15019.up
@@ -38,3 +38,8 @@ CREATE TABLE `autoprov_field_device_lines` (
   CONSTRAINT `fk_fdev_line_const` FOREIGN KEY (`device_id`) REFERENCES `autoprov_field_devices` (`id`) ON DELETE CASCADE ON UPDATE CASCADE,
   CONSTRAINT `fk_sub_line_const` FOREIGN KEY (`subscriber_id`) REFERENCES `voip_subscribers` (`id`) ON DELETE CASCADE ON UPDATE CASCADE
 ) ENGINE=InnoDB;
+
+USE billing;
+ALTER TABLE `admins`
+  ADD COLUMN `ssl_client_m_serial` BIGINT UNSIGNED NULL DEFAULT NULL AFTER `lawful_intercept`,
+  ADD UNIQUE INDEX `ssl_client_m_serial_UNIQUE` (`ssl_client_m_serial` ASC);