diff --git a/Hash2Pub.cabal b/Hash2Pub.cabal
index 2953d97..8970aaa 100644
--- a/Hash2Pub.cabal
+++ b/Hash2Pub.cabal
@@ -58,7 +58,7 @@ library
   exposed-modules:     Hash2Pub.FediChord, Hash2Pub.FediChordTypes, Hash2Pub.DHTProtocol, Hash2Pub.ASN1Coding, Hash2Pub.ProtocolTypes, Hash2Pub.PostService, Hash2Pub.RingMap
 
   -- Modules included in this library but not exported.
-  other-modules: Hash2Pub.Utils
+  other-modules: Hash2Pub.Utils, Hash2Pub.PostService.API
 
   -- LANGUAGE extensions used by modules in this package.
   other-extensions:    GeneralizedNewtypeDeriving, DataKinds, OverloadedStrings