diff --git a/account_payment_search_payment_amount.diff b/account_payment_search_payment_amount.diff
new file mode 100644
index 0000000..80ee1aa
--- /dev/null
+++ b/account_payment_search_payment_amount.diff
@@ -0,0 +1,21 @@
+diff --git a/account.py b/account.py
+--- a/trytond/trytond/modules/account_payment/account.py
++++ b/trytond/trytond/modules/account_payment/account.py
+@@ -116,7 +116,7 @@ class MoveLine(metaclass=PoolMeta):
+         account = Account.__table__()
+         account_type = AccountType.__table__()
+
+-        payment_amount = Sum(Coalesce(payment.amount, 0))
++        payment_amount = Coalesce(Sum(payment.amount), 0)
+         main_amount = Abs(table.credit - table.debit) - payment_amount
+         second_amount = Abs(table.amount_second_currency) - payment_amount
+         amount = Case((table.second_currency == Null, main_amount),
+@@ -130,7 +130,7 @@ class MoveLine(metaclass=PoolMeta):
+             .join(account_type, condition=account.type == account_type.id)
+             .select(table.id,
+                 where=(account_type.payable | account_type.receivable),
+-                group_by=(table.id, table.second_currency),
++                group_by=(table.id,),
+                 having=Operator(amount, value)
+                 ))
+         return [('id', 'in', query)]
diff --git a/series b/series
index 1286f0b..bf48f67 100644
--- a/series
+++ b/series
@@ -48,3 +48,5 @@ lazy_loading.diff # [trytond] https://discuss.tryton.org/t/should-create-uid-wri
 issue9616.diff # [analytic_invoice] Analytic move is not created when closing an asset
 
 fifo_quantity_round.diff # [product_cost_fifo] Round fifo_quantity before save, to avoid problems when compare with quantity
+
+account_payment_search_payment_amount.diff # [account_payment] Optimize searcher search_payment_amount
\ No newline at end of file