diff --git a/module/dataview/table/testtask.php b/module/dataview/table/testtask.php
index 2e9e716717..b97aa52502 100644
--- a/module/dataview/table/testtask.php
+++ b/module/dataview/table/testtask.php
@@ -18,9 +18,9 @@ $schema->tables['testtask']  = 'zt_testtask';
 
 $schema->joins = array();
 $schema->joins['product']   = '`product`.`id`   = `testtask`.`product`';
-$schema->joins['project']   = '`project`.`id`   = `testtask`.`project`';
+$schema->joins['project']   = '`project`.`id`   = CAST(`testtask`.`project` AS DECIMAL)';
 $schema->joins['execution'] = '`execution`.`id` = `testtask`.`execution`';
-$schema->joins['build']     = '`build`.`id`     = `testtask`.`build`';
+$schema->joins['build']     = '`build`.`id`     = CAST(`testtask`.`build` AS DECIMAL)';
 
 $schema->fields = array();
 $schema->fields['product']        = array('type' => 'object', 'name' => $this->lang->testtask->product, 'object' => 'product', 'show' => 'product.name');