diff --git a/app/models/sale.rb b/app/models/sale.rb
index 52f7acd3..849d8c8a 100644
--- a/app/models/sale.rb
+++ b/app/models/sale.rb
@@ -763,8 +763,10 @@ def self.daily_sales_list(from,to)
     SUM(case when (sale_payments.payment_method='dinga') then sale_payments.payment_amount else 0 end) as dinga_amount,
     SUM(case when (sale_payments.payment_method='JunctionPay') then sale_payments.payment_amount else 0 end) as junctionpay_amount,
     SUM(case when (sale_payments.payment_method='cash') then sale_payments.payment_amount else 0 end) as cash_amount,
-    CASE WHEN SUM(case when sale_payments.payment_method not in('creditnote') then sale_payments.payment_amount end) < sales.grand_total
-    THEN sales.grand_total - SUM(case when sale_payments.payment_method not in('creditnote') then sale_payments.payment_amount end)
+    CASE WHEN SUM(case when sale_payments.payment_method not in('creditnote')
+    then sale_payments.payment_amount else 0 end) < sales.grand_total
+    THEN sales.grand_total - SUM(case when sale_payments.payment_method not in('creditnote')
+    then sale_payments.payment_amount else 0 end)
     ELSE 0 END as credit_amount,
     SUM(case when (sale_payments.payment_method='giftvoucher') then sale_payments.payment_amount else 0 end) as giftvoucher_amount,
     SUM(case when (sale_payments.payment_method='foc') then sale_payments.payment_amount else 0 end) as foc_amount")