diff --git a/lib/ildus/server/domain_backends/dummy.rb b/lib/ildus/server/domain_backends/dummy.rb
index 40d8e2f..aed27ea 100644
--- a/lib/ildus/server/domain_backends/dummy.rb
+++ b/lib/ildus/server/domain_backends/dummy.rb
@@ -24,6 +24,7 @@ module Ildus::Server::DomainBackend
 
     def update_host(host, addr)
       puts "Update host #{host} with address #{addr}."
+      return true
     end
     
   end # class Dummy