diff --git a/src/Simplex/Messaging/Protocol.hs b/src/Simplex/Messaging/Protocol.hs
index 5edea1719..6f33a9f54 100644
--- a/src/Simplex/Messaging/Protocol.hs
+++ b/src/Simplex/Messaging/Protocol.hs
@@ -83,6 +83,7 @@ module Simplex.Messaging.Protocol
     ProtocolTypeI (..),
     UserProtocol,
     ProtocolServer (..),
+    AProtocolServer (..),
     ProtoServer,
     SMPServer,
     pattern SMPServer,