--- jabberd-2.2.17.nor/s2s/in.c	2012-02-12 22:36:18.000000000 +0100
+++ jabberd-2.2.17/s2s/in.c	2014-12-28 10:07:37.000000000 +0100
@@ -142,8 +142,10 @@
 
             flags = S2S_DB_HEADER;
 #ifdef HAVE_SSL
-            if(s2s->sx_ssl != NULL)
+            if(s2s->sx_ssl != NULL) {
                 flags |= SX_SSL_STARTTLS_OFFER;
+                if (s2s->require_tls) flags |= SX_SSL_STARTTLS_REQUIRE;
+            }
 #endif
 #ifdef HAVE_LIBZ
             if(s2s->compression)