diff --git a/erpnext/selling/report/item_wise_sales_history/item_wise_sales_history.py b/erpnext/selling/report/item_wise_sales_history/item_wise_sales_history.py
index 0a70b97..c716aa9 100644
--- a/erpnext/selling/report/item_wise_sales_history/item_wise_sales_history.py
+++ b/erpnext/selling/report/item_wise_sales_history/item_wise_sales_history.py
@@ -188,7 +188,7 @@
 		conditions += "AND so.transaction_date <= '%s'" %filters.to_date
 
 	if filters.get("item_code"):
-		conditions += "AND so_item.item_code = '%s'" %frappe.db.escape(filters.item_code)
+		conditions += "AND so_item.item_code = %s" %frappe.db.escape(filters.item_code)
 
 	if filters.get("customer"):
 		conditions += "AND so.customer = %s" %frappe.db.escape(filters.customer)