diff --git a/src/mod_muc_room.erl b/src/mod_muc_room.erl
index 94d574962..32ea90b2b 100644
--- a/src/mod_muc_room.erl
+++ b/src/mod_muc_room.erl
@@ -78,8 +78,6 @@
 -define(MAX_USERS_DEFAULT_LIST,
 	[5, 10, 20, 30, 50, 100, 200, 500, 1000, 2000, 5000]).
 
--define(DEFAULT_MAX_USERS_PRESENCE,1000).
-
 -define(MUC_HAT_ADD_CMD, <<"http://prosody.im/protocol/hats#add">>).
 -define(MUC_HAT_REMOVE_CMD, <<"http://prosody.im/protocol/hats#remove">>).
 -define(MUC_HAT_LIST_CMD, <<"p1:hats#list">>).
diff --git a/src/mod_multicast.erl b/src/mod_multicast.erl
index 92de4c7ad..a702f0f74 100644
--- a/src/mod_multicast.erl
+++ b/src/mod_multicast.erl
@@ -66,8 +66,6 @@
 
 %% All the elements are of type value()
 
--define(VERSION_MULTICAST, <<"$Revision: 440 $ ">>).
-
 -define(PURGE_PROCNAME,
 	ejabberd_mod_multicast_purgeloop).
 
@@ -79,8 +77,6 @@
 
 -define(CACHE_PURGE_TIMER, 86400000).
 
--define(DISCO_QUERY_TIMEOUT, 10000).
-
 -define(DEFAULT_LIMIT_LOCAL_MESSAGE, 100).
 
 -define(DEFAULT_LIMIT_LOCAL_PRESENCE, 100).
@@ -268,8 +264,6 @@ process_iq(#iq{type = T}, _) when T == set; T == get ->
 process_iq(_, _) ->
     reply.
 
--define(FEATURE(Feat), Feat).
-
 iq_disco_info(From, Lang, State) ->
     Name = mod_multicast_opt:name(State#state.lserver),
     #disco_info{
diff --git a/src/mod_offline.erl b/src/mod_offline.erl
index 9e7e3dffe..a66ffb20d 100644
--- a/src/mod_offline.erl
+++ b/src/mod_offline.erl
@@ -79,8 +79,6 @@
 
 -include("translate.hrl").
 
--define(OFFLINE_TABLE_LOCK_THRESHOLD, 1000).
-
 %% default value for the maximum number of user messages
 -define(MAX_USER_MESSAGES, infinity).