diff --git a/lib/customer_repo.rb b/lib/customer_repo.rb
index b38e16e13e42d0a665e29bfe524a24b82abad6d2..940b9b70f6f59df30564a658b73f56bd770e00a3 100644
--- a/lib/customer_repo.rb
+++ b/lib/customer_repo.rb
@@ -33,7 +33,7 @@ class CustomerRepo
 			find($1)
 		else
 			@redis.get("jmp_customer_id-#{jid}").then do |customer_id|
-				raise "No customer" unless customer_id
+				raise NotFound, "No customer" unless customer_id
 
 				find_inner(customer_id, jid)
 			end