diff --git a/blocks/db/mysql.php b/blocks/db/mysql.php
index 0320c52d58a..f78b02e7b18 100644
--- a/blocks/db/mysql.php
+++ b/blocks/db/mysql.php
@@ -68,7 +68,7 @@ global $CFG;
                         `id` int(10) not null auto_increment,
                         `blockid` int(10) not null default '0',
                         `pageid` int(10) not null default '0',
-                        `pagetype` enum('course') not null,
+                        `pagetype` varchar(12) not null default '',
                         `position` enum('l', 'r') not null,
                         `weight` tinyint(3) not null default '0',
                         `visible` tinyint(1) not null default '0',
diff --git a/blocks/db/postgres7.php b/blocks/db/postgres7.php
index 5a226c0288a..f399aee7daa 100644
--- a/blocks/db/postgres7.php
+++ b/blocks/db/postgres7.php
@@ -70,7 +70,7 @@ global $CFG;
                         id SERIAL8 PRIMARY KEY,
                         blockid INT8 not null default '0',
                         pageid INT8 not null default '0',
-                        pagetype varchar(12) not null check (pagetype in ('course')),
+                        pagetype varchar(12) not null default '',
                         position char not null check (position in ('l', 'r')) ,
                         weight int not null default '0',
                         visible int not null default '0',