diff --git a/phpBB/install/database_update.php b/phpBB/install/database_update.php
index bef57ad5ec..1427ab69fe 100644
--- a/phpBB/install/database_update.php
+++ b/phpBB/install/database_update.php
@@ -125,22 +125,22 @@ $dbms_type_map = array(
 		'TINT:'		=> 'tinyint(%d)',
 		'USINT'		=> 'smallint(4) UNSIGNED',
 		'BOOL'		=> 'tinyint(1) UNSIGNED',
-		'VCHAR'		=> 'varchar(255)',
-		'VCHAR:'	=> 'varchar(%d)',
-		'CHAR:'		=> 'char(%d)',
-		'XSTEXT'	=> 'text',
-		'XSTEXT_UNI'=> 'text',
-		'STEXT'		=> 'text',
-		'STEXT_UNI'	=> 'text',
-		'TEXT'		=> 'text',
-		'TEXT_UNI'	=> 'text',
-		'MTEXT'		=> 'mediumtext',
-		'MTEXT_UNI'	=> 'mediumtext',
+		'VCHAR'		=> 'varbinary(255)',
+		'VCHAR:'	=> 'varbinary(%d)',
+		'CHAR:'		=> 'binary(%d)',
+		'XSTEXT'	=> 'blob',
+		'XSTEXT_UNI'=> 'blob',
+		'STEXT'		=> 'blob',
+		'STEXT_UNI'	=> 'blob',
+		'TEXT'		=> 'blob',
+		'TEXT_UNI'	=> 'blob',
+		'MTEXT'		=> 'mediumblob',
+		'MTEXT_UNI'	=> 'mediumblob',
 		'TIMESTAMP'	=> 'int(11) UNSIGNED',
 		'DECIMAL'	=> 'decimal(5,2)',
-		'VCHAR_UNI'	=> 'text',
-		'VCHAR_UNI:'=> array('varchar(%d)', 'limit' => array('mult', 3, 255, 'text')),
-		'VCHAR_CI'	=> 'text',
+		'VCHAR_UNI'	=> 'blob',
+		'VCHAR_UNI:'=> array('varbinary(%d)', 'limit' => array('mult', 3, 255, 'blob')),
+		'VCHAR_CI'	=> 'blob',
 		'VARBINARY'	=> 'varbinary(255)',
 	),