diff --git a/application/models/Item.php b/application/models/Item.php
index 6fe326e99..ae1ce9bbd 100644
--- a/application/models/Item.php
+++ b/application/models/Item.php
@@ -190,12 +190,12 @@ class Item extends CI_Model
 			$this->db->group_end();
 		}
 
-		if ($attributes_enabled)
+		if($attributes_enabled)
 		{
 			$format = $this->db->escape(dateformat_mysql());
 			$this->db->select('GROUP_CONCAT(DISTINCT CONCAT_WS(\'_\', definition_id, attribute_value) ORDER BY definition_id SEPARATOR \'|\') AS attribute_values');
 			$this->db->select("GROUP_CONCAT(DISTINCT CONCAT_WS('_', definition_id, DATE_FORMAT(attribute_date, $format)) SEPARATOR '|') AS attribute_dtvalues");
-			$this->db->select("GROUP_CONCAT(DISTINCT CONCAT_WS('_', definition_id, attribute_decimal) SEPARATOR '|') AS attribute_dvalues");
+			$this->db->select('GROUP_CONCAT(DISTINCT CONCAT_WS(\'_\', definition_id, attribute_decimal) SEPARATOR \'|\') AS attribute_dvalues');
 			$this->db->join('attribute_links', 'attribute_links.item_id = items.item_id AND attribute_links.receiving_id IS NULL AND attribute_links.sale_id IS NULL AND definition_id IN (' . implode(',', $filters['definition_ids']) . ')', 'left');
 			$this->db->join('attribute_values', 'attribute_values.attribute_id = attribute_links.attribute_id', 'left');
 		}
diff --git a/application/models/reports/Detailed_receivings.php b/application/models/reports/Detailed_receivings.php
index d509ebd8f..223cb8585 100644
--- a/application/models/reports/Detailed_receivings.php
+++ b/application/models/reports/Detailed_receivings.php
@@ -100,12 +100,12 @@ class Detailed_receivings extends Report
 			$this->db->select('name, item_number, category, quantity_purchased, serialnumber, total, discount, discount_type, item_location, receivings_items_temp.receiving_quantity');
 			$this->db->from('receivings_items_temp');
 			$this->db->join('items', 'receivings_items_temp.item_id = items.item_id');
-			if (count($inputs['definition_ids']) > 0)
+			if(count($inputs['definition_ids']) > 0)
 			{
 				$format = $this->db->escape(dateformat_mysql());
-				$this->db->select("GROUP_CONCAT(DISTINCT CONCAT_WS('_', definition_id, attribute_value) ORDER BY definition_id SEPARATOR '|') AS attribute_values");
+				$this->db->select('GROUP_CONCAT(DISTINCT CONCAT_WS(\'_\', definition_id, attribute_value) ORDER BY definition_id SEPARATOR \'|\') AS attribute_values');
 				$this->db->select("GROUP_CONCAT(DISTINCT CONCAT_WS('_', definition_id, DATE_FORMAT(attribute_date, $format)) SEPARATOR '|') AS attribute_dtvalues");
-				$this->db->select("GROUP_CONCAT(DISTINCT CONCAT_WS('_', definition_id, attribute_decimal SEPARATOR '|') AS attribute_dvalues");
+				$this->db->select('GROUP_CONCAT(DISTINCT CONCAT_WS(\'_\', definition_id, attribute_decimal) SEPARATOR \'|\') AS attribute_dvalues');
 				$this->db->join('attribute_links', 'attribute_links.item_id = items.item_id AND attribute_links.receiving_id = receivings_items_temp.receiving_id AND definition_id IN (' . implode(',', $inputs['definition_ids']) . ')', 'left');
 				$this->db->join('attribute_values', 'attribute_values.attribute_id = attribute_links.attribute_id', 'left');
 				$this->db->group_by('receivings_items_temp.receiving_id, receivings_items_temp.item_id');
diff --git a/application/models/reports/Detailed_sales.php b/application/models/reports/Detailed_sales.php
index 397f5b3e6..c5aa7aef7 100644
--- a/application/models/reports/Detailed_sales.php
+++ b/application/models/reports/Detailed_sales.php
@@ -146,12 +146,12 @@ class Detailed_sales extends Report
 		{
 			$this->db->select('name, category, quantity_purchased, item_location, serialnumber, description, subtotal, tax, total, cost, profit, discount, discount_type, sale_status');
 			$this->db->from('sales_items_temp');
-			if (count($inputs['definition_ids']) > 0)
+			if(count($inputs['definition_ids']) > 0)
 			{
 				$format = $this->db->escape(dateformat_mysql());
-				$this->db->select("GROUP_CONCAT(DISTINCT CONCAT_WS('_', definition_id, attribute_value) ORDER BY definition_id SEPARATOR '|') AS attribute_values");
+				$this->db->select('GROUP_CONCAT(DISTINCT CONCAT_WS(\'_\', definition_id, attribute_value) ORDER BY definition_id SEPARATOR \'|\') AS attribute_values');
 				$this->db->select("GROUP_CONCAT(DISTINCT CONCAT_WS('_', definition_id, DATE_FORMAT(attribute_date, $format)) SEPARATOR '|') AS attribute_dtvalues");
-				$this->db->select("GROUP_CONCAT(DISTINCT CONCAT_WS('_', definition_id, attribute_decimal SEPARATOR '|') AS attribute_dvalues");
+				$this->db->select('GROUP_CONCAT(DISTINCT CONCAT_WS(\'_\', definition_id, attribute_decimal) SEPARATOR \'|\') AS attribute_dvalues');
 				$this->db->join('attribute_links', 'attribute_links.item_id = sales_items_temp.item_id AND attribute_links.sale_id = sales_items_temp.sale_id AND definition_id IN (' . implode(',', $inputs['definition_ids']) . ')', 'left');
 				$this->db->join('attribute_values', 'attribute_values.attribute_id = attribute_links.attribute_id');
 				$this->db->group_by('sales_items_temp.sale_id, sales_items_temp.item_id');