diff --git a/bin/cancel_expired_customers b/bin/cancel_expired_customers
index c49f5c24fc0214ec72e25bde414806e491c4cb10..a044d6b2cf9717e61f1521875c561d26c717401a 100755
--- a/bin/cancel_expired_customers
+++ b/bin/cancel_expired_customers
@@ -24,7 +24,8 @@ CONFIG = Dhall.load(<<-DHALL).sync
 			password: Text,
 			target: Text -> Text,
 			body: Text -> Text -> Text
-		}
+		},
+		old_port_ins: List Text
 	}
 DHALL
 
@@ -61,7 +62,7 @@ ported_in_promise = Promise.new
 EM.schedule do
 	Fiber.new {
 		begin
-			tns = Set.new
+			tns = Set.new(CONFIG[:old_port_ins])
 			page = BandwidthIris::PortIn.list(
 				page: 1,
 				size: 1000,