diff --git a/service.go b/service.go
index 4eeac83..e241ac7 100644
--- a/service.go
+++ b/service.go
@@ -1,6 +1,7 @@
 package contracts
 
 type Service interface {
+	Load(file string) error
 	GetResListener(code string) (ResListener, bool)
 	GetAppController(code string) (Controller, bool)
 }