diff --git a/obj.go b/obj.go
index 799d410..9989988 100644
--- a/obj.go
+++ b/obj.go
@@ -438,6 +438,7 @@ func loadObjCastle() error {
 		c.Name = name
 		cacheObjCastle.Store(logo, *c)
 		cacheObjCastle.Store(name, *c)
+		fmt.Printf("loadObjCastle : caching %s.\n", c.Name)
 	}
 
 	return nil