diff --git a/modules/productcomments/ProductComment.php b/modules/productcomments/ProductComment.php
index 6ba3eb51f..30d43a7b3 100644
--- a/modules/productcomments/ProductComment.php
+++ b/modules/productcomments/ProductComment.php
@@ -106,10 +106,10 @@ class ProductComment extends ObjectModel
 		
 		return Db::getInstance(_PS_USE_SQL_SLAVE_)->ExecuteS('
 		SELECT pc.`id_product_comment`, 
-		(SELECT count(*) FROM `ps_product_comment_usefulness` pcu WHERE pcu.`id_product_comment` = pc.`id_product_comment` AND pcu.`usefulness` = 1) as total_useful, 
-		(SELECT count(*) FROM `ps_product_comment_usefulness` pcu WHERE pcu.`id_product_comment` = pc.`id_product_comment`) as total_advice, '.
-		($id_customer ? '(SELECT count(*) FROM `ps_product_comment_usefulness` pcuc WHERE pcuc.`id_product_comment` = pc.`id_product_comment` AND pcuc.id_customer = '.(int)$id_customer.') as customer_advice, ' : '').
-		($id_customer ? '(SELECT count(*) FROM `ps_product_comment_report` pcrc WHERE pcrc.`id_product_comment` = pc.`id_product_comment` AND pcrc.id_customer = '.(int)$id_customer.') as customer_report, ' : '').'
+		(SELECT count(*) FROM `'._DB_PREFIX_.'product_comment_usefulness` pcu WHERE pcu.`id_product_comment` = pc.`id_product_comment` AND pcu.`usefulness` = 1) as total_useful, 
+		(SELECT count(*) FROM `'._DB_PREFIX_.'product_comment_usefulness` pcu WHERE pcu.`id_product_comment` = pc.`id_product_comment`) as total_advice, '.
+		($id_customer ? '(SELECT count(*) FROM `'._DB_PREFIX_.'product_comment_usefulness` pcuc WHERE pcuc.`id_product_comment` = pc.`id_product_comment` AND pcuc.id_customer = '.(int)$id_customer.') as customer_advice, ' : '').
+		($id_customer ? '(SELECT count(*) FROM `'._DB_PREFIX_.'product_comment_report` pcrc WHERE pcrc.`id_product_comment` = pc.`id_product_comment` AND pcrc.id_customer = '.(int)$id_customer.') as customer_report, ' : '').'
 		IF(c.id_customer, CONCAT(c.`firstname`, \' \',  LEFT(c.`lastname`, 1)), pc.customer_name) customer_name, pc.`content`, pc.`grade`, pc.`date_add`, pc.title
 		  FROM `'._DB_PREFIX_.'product_comment` pc
 		LEFT JOIN `'._DB_PREFIX_.'customer` c ON c.`id_customer` = pc.`id_customer`