diff --git a/Hash2Pub/Hash2Pub.cabal b/Hash2Pub/Hash2Pub.cabal
index d65eae4..2225792 100644
--- a/Hash2Pub/Hash2Pub.cabal
+++ b/Hash2Pub/Hash2Pub.cabal
@@ -55,10 +55,10 @@ library
   import: deps
 
   -- Modules exported by the library.
-  exposed-modules:     Hash2Pub.FediChord
+  exposed-modules:     Hash2Pub.FediChord, Hash2Pub.DHTProtocol
 
   -- Modules included in this library but not exported.
-  other-modules: Hash2Pub.Utils, Hash2Pub.DHTProtocol
+  other-modules: Hash2Pub.Utils
 
   -- LANGUAGE extensions used by modules in this package.
   other-extensions:    GeneralizedNewtypeDeriving, DataKinds, OverloadedStrings
diff --git a/Hash2Pub/src/Hash2Pub/DHTProtocol.hs b/Hash2Pub/src/Hash2Pub/DHTProtocol.hs
index 3378322..1098d85 100644
--- a/Hash2Pub/src/Hash2Pub/DHTProtocol.hs
+++ b/Hash2Pub/src/Hash2Pub/DHTProtocol.hs
@@ -21,6 +21,7 @@ data QueryResponse = FORWARD [CacheEntry] -- ^return closest nodes from local ca
                                           -- the entry time stamp available to the
                                           -- protocol serialiser
                    | FOUND NodeState     -- ^node is the responsible node for queried ID
+                   deriving (Show, Eq)
 
 -- TODO: evaluate more fine-grained argument passing to allow granular locking
 -- | look up an ID to either claim responsibility for it or return the closest l nodes from the local cache
diff --git a/Hash2Pub/src/Hash2Pub/FediChord.hs b/Hash2Pub/src/Hash2Pub/FediChord.hs
index 4ca5afc..8bb60f6 100644
--- a/Hash2Pub/src/Hash2Pub/FediChord.hs
+++ b/Hash2Pub/src/Hash2Pub/FediChord.hs
@@ -120,7 +120,7 @@ data NodeState = NodeState {
   , jEntriesPerSlice :: Int
   -- ^ number of desired entries per cache slice
   -- needs to be parameterisable for simulation purposes
-  } deriving (Show)
+  } deriving (Show, Eq)
 
 type NodeCache = Map.Map NodeID CacheEntry