diff --git a/docs/install.sql b/docs/install.sql
index c8d2b0c..e3e983e 100644
--- a/docs/install.sql
+++ b/docs/install.sql
@@ -2,8 +2,18 @@ CREATE TABLE `d3totp` (
 	`OXID` CHAR(32) NOT NULL,
 	`OXUSERID` CHAR(32) NOT NULL,
 	`USETOTP` TINYINT(1) NOT NULL DEFAULT '0',
-	`SEED` VARCHAR(125) NOT NULL DEFAULT '0',
+	`SEED` VARCHAR(256) NOT NULL DEFAULT '0',
+    `BC1` VARCHAR(64) NOT NULL DEFAULT '0'  COMMENT 'BackupCode #1',
+    `BC2` VARCHAR(64) NOT NULL DEFAULT '0'  COMMENT 'BackupCode #2',
+    `BC3` VARCHAR(64) NOT NULL DEFAULT '0'  COMMENT 'BackupCode #3',
+    `BC4` VARCHAR(64) NOT NULL DEFAULT '0'  COMMENT 'BackupCode #4',
+    `BC5` VARCHAR(64) NOT NULL DEFAULT '0'  COMMENT 'BackupCode #5',
+    `BC6` VARCHAR(64) NOT NULL DEFAULT '0'  COMMENT 'BackupCode #6',
+    `BC7` VARCHAR(64) NOT NULL DEFAULT '0'  COMMENT 'BackupCode #7',
+    `BC8` VARCHAR(64) NOT NULL DEFAULT '0'  COMMENT 'BackupCode #8',
+    `BC9` VARCHAR(64) NOT NULL DEFAULT '0'  COMMENT 'BackupCode #9',
+    `BC10` VARCHAR(64) NOT NULL DEFAULT '0'  COMMENT 'BackupCode #10',
 	PRIMARY KEY (`OXID`),
 	UNIQUE INDEX `OXUSERID` (`OXUSERID`)
 )
-ENGINE=InnoDB
\ No newline at end of file
+ENGINE=InnoDB