diff --git a/src/ejabberd_s2s_in.erl b/src/ejabberd_s2s_in.erl
index 3eb0b71cc..aa55c2e63 100644
--- a/src/ejabberd_s2s_in.erl
+++ b/src/ejabberd_s2s_in.erl
@@ -294,8 +294,9 @@ wait_for_stream({xmlstreamstart, _Name, Attrs},
 		?INFO_MSG("Closing s2s connection: ~s <--> ~s (~s)",
 			  [StateData#state.server, RemoteServer, CertError]),
 		send_text(StateData,
-			  xml:element_to_binary(?SERRT_POLICY_VIOLATION(<<"en">>,
-									CertError))),
+			  <<(xml:element_to_binary(?SERRT_POLICY_VIOLATION(<<"en">>,
+									   CertError)))/binary,
+			    (?STREAM_TRAILER)/binary>>),
 		{atomic, Pid} =
 		    ejabberd_s2s:find_connection(jlib:make_jid(<<"">>,
 							       Server, <<"">>),