diff --git a/sql/000_base_structure.sql b/sql/000_base_structure.sql
index fc31343d..81aa8f81 100644
--- a/sql/000_base_structure.sql
+++ b/sql/000_base_structure.sql
@@ -81,6 +81,7 @@ CREATE TABLE IF NOT EXISTS `pool_worker` (
   `username` char(50) DEFAULT NULL,
   `password` char(255) DEFAULT NULL,
   `monitor` tinyint(1) NOT NULL DEFAULT '0',
+  `hashrate` int(11) DEFAULT NULL,
   `difficulty` int(11) NOT NULL DEFAULT '0',
   PRIMARY KEY (`id`),
   UNIQUE KEY `username` (`username`),