diff --git a/docs/upgrades/upgrade_4.0.4-4.1.0.sql b/docs/upgrades/upgrade_4.0.4-4.1.0.sql
index 0679282a6..f4b38e450 100644
--- a/docs/upgrades/upgrade_4.0.4-4.1.0.sql
+++ b/docs/upgrades/upgrade_4.0.4-4.1.0.sql
@@ -23,12 +23,10 @@ alter table UserSubmission add column karmaPerPost int not null default 0;
 alter table MessageBoard add column karmaPerPost int not null default 0;
 alter table Article add column karmaPerPost int not null default 0;
 CREATE TABLE imageGroup (
-  imageGroupId int(11) NOT NULL auto_increment,
+  imageGroupId int(11) NOT NULL,
   name varchar(128) NOT NULL default 'untitled',
   parentId int(11) NOT NULL default '0',
   description varchar(255) default NULL,
-  PRIMARY KEY  (imageGroupId),
-  UNIQUE KEY imageGroupId (imageGroupId)
 );
 INSERT INTO incrementer VALUES('imageGroupId',1);
 INSERT INTO imageGroup (imageGroupId, name, parentId, description) VALUES (0, 'Root', 0, 'Top level');