diff --git a/src/mod_mix_mnesia.erl b/src/mod_mix_mnesia.erl
index 706e317f3..0d3a4d20c 100644
--- a/src/mod_mix_mnesia.erl
+++ b/src/mod_mix_mnesia.erl
@@ -128,7 +128,7 @@ set_participant(_LServer, Channel, Service, JID, ID, Nick) ->
 	 nick = Nick,
 	 created_at = erlang:timestamp()}).
 
--spec get_participant(binary(), binary(), binary(), jid()) -> {ok, {binary(), binary()}} | {error, notfound}.
+-spec get_participant(binary(), binary(), binary(), jid:jid()) -> {ok, {binary(), binary()}} | {error, notfound}.
 get_participant(_LServer, Channel, Service, JID) ->
     {User, Domain, _} = jid:tolower(JID),
     case mnesia:dirty_read(mix_participant, {User, Domain, Channel, Service}) of
diff --git a/src/mod_mix_sql.erl b/src/mod_mix_sql.erl
index fcc5b3d97..be3b28124 100644
--- a/src/mod_mix_sql.erl
+++ b/src/mod_mix_sql.erl
@@ -167,7 +167,7 @@ set_participant(LServer, Channel, Service, JID, ID, Nick) ->
 	_Err -> {error, db_failure}
     end.
 
--spec get_participant(binary(), binary(), binary(), jid()) -> {ok, {binary(), binary()}} | {error, notfound | db_failure}.
+-spec get_participant(binary(), binary(), binary(), jid:jid()) -> {ok, {binary(), binary()}} | {error, notfound | db_failure}.
 get_participant(LServer, Channel, Service, JID) ->
     {User, Domain, _} = jid:tolower(JID),
     case ejabberd_sql:sql_query(