diff -r 671723ed2a42 -r 6d85d309f8e4 libpurple/protocols/facebook/api.c
--- a/libpurple/protocols/facebook/api.c	Wed Oct 19 18:50:39 2016 +0000
+++ b/libpurple/protocols/facebook/api.c	Sat Oct 22 02:16:30 2016 -0300
@@ -2174,6 +2174,7 @@
 	JsonBuilder *bldr;
 
 	mid = FB_API_MSGID(g_get_real_time() / 1000, g_random_int());
+	priv->lastmid = mid;
 
 	if (msg->tid != 0) {
 		tpfx = "tfbid_";