diff --git a/src/ejabberd_s2s_out.erl b/src/ejabberd_s2s_out.erl
index eb508da14..9abc0d017 100644
--- a/src/ejabberd_s2s_out.erl
+++ b/src/ejabberd_s2s_out.erl
@@ -254,10 +254,12 @@ handle_recv(El, Pkt, #{server_host := ServerHost} = State) ->
 handle_send(El, Pkt, #{server_host := ServerHost} = State) ->
     ejabberd_hooks:run_fold(s2s_out_handle_send, ServerHost, State, [El, Pkt]).
 
-handle_timeout(#{on_route := Action} = State) ->
+handle_timeout(#{on_route := Action, lang := Lang} = State) ->
     case Action of
 	bounce -> stop(State);
-	_ -> send(State, xmpp:serr_connection_timeout())
+	_ ->
+	    Txt = <<"Idle connection">>,
+	    send(State, xmpp:serr_connection_timeout(Txt, Lang))
     end.
 
 init([#{server := LServer, remote_server := RServer} = State, Opts]) ->
diff --git a/src/xmpp_stream_in.erl b/src/xmpp_stream_in.erl
index c27ac5f6b..6e07e9006 100644
--- a/src/xmpp_stream_in.erl
+++ b/src/xmpp_stream_in.erl
@@ -367,11 +367,12 @@ handle_info({'$gen_all_state_event', {xmlstreamcdata, Data}},
     noreply(try Mod:handle_cdata(Data, State)
 	    catch _:undef -> State
 	    end);
-handle_info(timeout, #{mod := Mod} = State) ->
+handle_info(timeout, #{mod := Mod, lang := Lang} = State) ->
     Disconnected = is_disconnected(State),
     noreply(try Mod:handle_timeout(State)
 	    catch _:undef when not Disconnected ->
-		    send_pkt(State, xmpp:serr_connection_timeout());
+		    Txt = <<"Idle connection">>,
+		    send_pkt(State, xmpp:serr_connection_timeout(Txt, Lang));
 		  _:undef ->
 		    stop(State)
 	    end);
diff --git a/src/xmpp_stream_out.erl b/src/xmpp_stream_out.erl
index 7e79bb80e..ce67d4231 100644
--- a/src/xmpp_stream_out.erl
+++ b/src/xmpp_stream_out.erl
@@ -376,11 +376,12 @@ handle_info({'$gen_event', {xmlstreamend, _}}, State) ->
     noreply(process_stream_end({stream, reset}, State));
 handle_info({'$gen_event', closed}, State) ->
     noreply(process_stream_end({socket, closed}, State));
-handle_info(timeout, #{mod := Mod} = State) ->
+handle_info(timeout, #{mod := Mod, lang := Lang} = State) ->
     Disconnected = is_disconnected(State),
     noreply(try Mod:handle_timeout(State)
 	    catch _:undef when not Disconnected ->
-		    send_pkt(State, xmpp:serr_connection_timeout());
+		    Txt = <<"Idle connection">>,
+		    send_pkt(State, xmpp:serr_connection_timeout(Txt, Lang));
 		  _:undef ->
 		    stop(State)
 	    end);