From 34f2a8a4f2f075a84bcdd2756b0c70d25fcbcbb6 Mon Sep 17 00:00:00 2001
From: Badlop <badlop@process-one.net>
Date: Thu, 1 Dec 2016 21:02:35 +0100
Subject: [PATCH] Fix error formatting, which closed client connection (#1389)

---
 src/mod_muc_room.erl | 4 ++--
 1 file 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