cakephp-Ascending Order in Pagination

Recently I faced an issue while implementing an "Order By" command in cakephp pagination it was not taking the regular cakephp syntax

So I performed the same as follows

$this->Paginate=array('limit'=>10,'order'=>array('Model.field1'=>'asc'));

remember I used regular order i.e.

$this->Paginate=array('limit'=>10,'order'=>array('Model.field1 ASC'));

but this did not work