diff --git a/port.c b/port.c
index 10e9a03..223f627 100644
--- a/port.c
+++ b/port.c
@@ -1141,13 +1141,13 @@ struct foreign_clock *port_compute_best(struct port *p)
 		if (!tmp)
 			continue;
 
+		announce_to_dataset(tmp, p->clock, &fc->dataset);
+
 		fc_prune(fc);
 
 		if (fc->n_messages < FOREIGN_MASTER_THRESHOLD)
 			continue;
 
-		announce_to_dataset(tmp, p->clock, &fc->dataset);
-
 		if (!p->best)
 			p->best = fc;
 		else if (dscmp(&fc->dataset, &p->best->dataset) > 0)