diff --git a/bgpd/bgp_rpki.c b/bgpd/bgp_rpki.c
index bd5a5b1ffa..0a51269d9b 100644
--- a/bgpd/bgp_rpki.c
+++ b/bgpd/bgp_rpki.c
@@ -369,7 +369,7 @@ static int bgpd_sync_callback(struct thread *thread)
 	thread_add_read(bm->master, bgpd_sync_callback, NULL, socket, &t_rpki);
 
 	if (atomic_load_explicit(&rtr_update_overflow, memory_order_seq_cst)) {
-		while (read(socket, &rec, sizeof(struct pfx_record) != -1))
+		while (read(socket, &rec, sizeof(struct pfx_record)) != -1)
 			;
 
 		atomic_store_explicit(&rtr_update_overflow, 0,