diff --git a/src/sync.c b/src/sync.c
index 463b5f4..51c64a9 100644
--- a/src/sync.c
+++ b/src/sync.c
@@ -598,6 +598,7 @@ sync_boxes( store_t *ctx[], const char *names[], channel_conf_t *chan,
 	svars->uidval[0] = svars->uidval[1] = -1;
 	svars->srecadd = &svars->srecs;
 
+	ctx[0]->name = ctx[1]->name = 0;
 	for (t = 0; t < 2; t++) {
 		ctx[t]->orig_name =
 			(!names[t] || (ctx[t]->conf->map_inbox && !strcmp( ctx[t]->conf->map_inbox, names[t] ))) ?