diff --git a/install.sql b/install.sql
index 1b5fc196..7c234cc5 100644
--- a/install.sql
+++ b/install.sql
@@ -305,10 +305,10 @@ CREATE TABLE IF NOT EXISTS `ban_appeals` (
 
 CREATE TABLE `pages` (
   `id` int(11) NOT NULL AUTO_INCREMENT,
-  `board` varchar(195) DEFAULT NULL,
-  `name` varchar(195) NOT NULL,
-  `title` varchar(255) DEFAULT NULL,
-  `type` varchar(255) DEFAULT NULL,
+  `board` varchar(150) DEFAULT NULL,
+  `name` varchar(150) NOT NULL,
+  `title` varchar(150) DEFAULT NULL,
+  `type` varchar(150) DEFAULT NULL,
   `content` text,
   PRIMARY KEY (`id`),
   UNIQUE KEY `u_pages` (`name`,`board`)
@@ -323,7 +323,7 @@ CREATE TABLE `pages` (
 CREATE TABLE `nntp_references` (
   `board` varchar(60) NOT NULL,
   `id` int(11) unsigned NOT NULL,
-  `message_id` varchar(255) CHARACTER SET ascii NOT NULL,
+  `message_id` varchar(190) CHARACTER SET ascii NOT NULL,
   `message_id_digest` varchar(40) CHARACTER SET ascii NOT NULL,
   `own` tinyint(1) NOT NULL,
   `headers` text,
@@ -335,7 +335,7 @@ CREATE TABLE `nntp_references` (
 
 CREATE TABLE IF NOT EXISTS `calendar_events` (
 	  `id` int(11) NOT NULL AUTO_INCREMENT,
-	  `title` varchar(255) NOT NULL,
+	  `title` varchar(190) NOT NULL,
 	  `description` text NOT NULL,
 	  `start` datetime NOT NULL,
 	  `end` datetime NOT NULL,