diff --git a/service_map.go b/service_map.go
index 5a3e0c1..8cf122a 100644
--- a/service_map.go
+++ b/service_map.go
@@ -155,6 +155,7 @@ func validateType(t reflect.Type) (rt reflect.Type, rv reflect.Value, err error)
 		err = fmt.Errorf("Type is Struct. Pass by reference, i.e. %s", t)
 		return
 	}
+	rt = t
 	if t.Kind() == reflect.Ptr {
 		rt = t.Elem()
 	}