diff --git a/lib/db/mysql.sql b/lib/db/mysql.sql
index a9a565bc599..4f0a458f9cc 100644
--- a/lib/db/mysql.sql
+++ b/lib/db/mysql.sql
@@ -29,8 +29,8 @@ CREATE TABLE `prefix_config` (
 
 CREATE TABLE `prefix_config_plugins` (
   `id`         int(10) unsigned NOT NULL auto_increment,
-  `plugin`     varchar(255) NOT NULL default 'core',
-  `name`       varchar(255) NOT NULL default '',
+  `plugin`     varchar(250) NOT NULL default 'core',
+  `name`       varchar(250) NOT NULL default '',
   `value`      text NOT NULL default '',
   PRIMARY KEY  (`id`),
   UNIQUE KEY `plugin_name` (`plugin`, `name`)