diff --git a/lib/primitives/address.js b/lib/primitives/address.js
index 878be686..9aa476f0 100644
--- a/lib/primitives/address.js
+++ b/lib/primitives/address.js
@@ -72,7 +72,7 @@ Address.types = {
  * @const {RevMap}
  */
 
-exports.typesByVal = util.revMap(Address.types);
+Address.typesByVal = util.revMap(Address.types);
 
 /**
  * Inject properties from options object.