diff -r b33127bc2424 -r 8ad85859dd3f gameServer/CoreTypes.hs
--- a/gameServer/CoreTypes.hs	Sat Dec 08 14:13:18 2018 +0100
+++ b/gameServer/CoreTypes.hs	Sat Dec 08 14:19:11 2018 +0100
@@ -103,6 +103,7 @@
     | ReactCmd [B.ByteString]
     | CheckVotes
     | SetRandomSeed
+    | ShowRegisteredOnlyState [ClientChan]
 
 
 data Event = LobbyChatMessage