diff --git a/database/2.4_to_3.0.sql b/database/2.4_to_3.0.sql
index d900f77bb..fed929b14 100644
--- a/database/2.4_to_3.0.sql
+++ b/database/2.4_to_3.0.sql
@@ -43,6 +43,10 @@ ALTER TABLE `ospos_customers`
  
 -- alter config table
 
+ALTER TABLE `ospos_app_config`
+ MODIFY COLUMN `key` varchar(50) NOT NULL,
+ MODIFY COLUMN `value` varchar(500) NOT NULL;
+
 UPDATE `ospos_app_config` SET `key` = 'receipt_show_total_discount' WHERE `key` = 'show_total_discount';
 
 DELETE FROM `ospos_app_config` WHERE `key` = 'use_invoice_template';
diff --git a/database/database.sql b/database/database.sql
index 118a9f327..138f68f9e 100644
--- a/database/database.sql
+++ b/database/database.sql
@@ -4,8 +4,8 @@
 --
 
 CREATE TABLE `ospos_app_config` (
-  `key` varchar(255) NOT NULL,
-  `value` varchar(255) NOT NULL,
+  `key` varchar(50) NOT NULL,
+  `value` varchar(500) NOT NULL,
   PRIMARY KEY (`key`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
diff --git a/database/migrate_phppos_dist.sql b/database/migrate_phppos_dist.sql
index 15dcaead9..f82087eca 100644
--- a/database/migrate_phppos_dist.sql
+++ b/database/migrate_phppos_dist.sql
@@ -4,8 +4,8 @@
 --
 
 CREATE TABLE `ospos_app_config` (
-  `key` varchar(255) NOT NULL,
-  `value` varchar(255) NOT NULL,
+  `key` varchar(50) NOT NULL,
+  `value` varchar(500) NOT NULL,
   PRIMARY KEY (`key`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
 
diff --git a/database/tables.sql b/database/tables.sql
index 752f74b8e..f09c66624 100644
--- a/database/tables.sql
+++ b/database/tables.sql
@@ -4,8 +4,8 @@
 --
 
 CREATE TABLE `ospos_app_config` (
-  `key` varchar(255) NOT NULL,
-  `value` varchar(255) NOT NULL,
+  `key` varchar(50) NOT NULL,
+  `value` varchar(500) NOT NULL,
   PRIMARY KEY (`key`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;