diff --git a/rebar.config b/rebar.config
index d0b009848..22c66beae 100644
--- a/rebar.config
+++ b/rebar.config
@@ -70,7 +70,7 @@
         {stringprep, ".*", {git, "https://github.com/processone/stringprep", {tag, "1.0.28"}}},
         {if_var_true, stun,
          {stun, ".*", {git, "https://github.com/processone/stun", {tag, "1.2.2"}}}},
-        {xmpp, ".*", {git, "https://github.com/processone/xmpp", {tag, "1.5.8"}}},
+        {xmpp, ".*", {git, "https://github.com/processone/xmpp", "cdda2bea2df0b4ed40fbd854f6f1bf21c6b7a8c5"}},
         {yconf, ".*", {git, "https://github.com/processone/yconf", {tag, "1.0.13"}}}
        ]}.
 
diff --git a/src/mod_muc_room.erl b/src/mod_muc_room.erl
index d2eb80cc4..961b51762 100644
--- a/src/mod_muc_room.erl
+++ b/src/mod_muc_room.erl
@@ -4321,6 +4321,7 @@ iq_disco_info_extras(Lang, StateData, Static) ->
 	   {description, Config#config.description},
 	   {changesubject, Config#config.allow_change_subj},
 	   {allowinvites, Config#config.allow_user_invites},
+	   {allow_query_users, Config#config.allow_query_users},
 	   {allowpm, AllowPM},
 	   {lang, Config#config.lang}],
     Fs2 = case Config#config.pubsub of