diff --git a/application/models/reports/Summary_taxes.php b/application/models/reports/Summary_taxes.php
index 00c87bbbe..78b4526fe 100644
--- a/application/models/reports/Summary_taxes.php
+++ b/application/models/reports/Summary_taxes.php
@@ -12,7 +12,7 @@ class Summary_taxes extends Summary_report
 	protected function _get_data_columns()
 	{
 		return array(
-			array('tax' => $this->lang->line('reports_tax_percent'), 'sorter' => 'currency_sorter'),
+			array('tax_percent' => $this->lang->line('reports_tax_percent'), 'sorter' => 'currency_sorter'),
 			array('report_count' => $this->lang->line('reports_count')),
 			array('subtotal' => $this->lang->line('reports_subtotal'), 'sorter' => 'currency_sorter'),
 			array('tax' => $this->lang->line('reports_tax'), 'sorter' => 'currency_sorter'),