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-rw-r--r--src/mod_muc_room.erl4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mod_muc_room.erl b/src/mod_muc_room.erl
index 957220540..b66748e64 100644
--- a/src/mod_muc_room.erl
+++ b/src/mod_muc_room.erl
@@ -2723,8 +2723,8 @@ find_changed_items(UJID, UAffiliation, URole,
Nick /= <<"">> ->
case find_jids_by_nick(Nick, StateData) of
[] ->
- ErrText = {<<"Nickname ~s does not exist in the room">>,
- [Nick]},
+ ErrText = str:format(<<"Nickname ~s does not exist in the room">>,
+ [Nick]),
throw({error, xmpp:err_not_acceptable(ErrText, Lang)});
JIDList ->
JIDList