diff --git a/lib/index.js b/lib/index.js
index 12ff695..346f479 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -570,6 +570,7 @@ function initSet(peer, config) {
     del,
     has,
     values,
+    getDomain: fromSubdomain,
     getFeedID,
     isGhostable,
     getGhostSpan,