diff --git a/examples/ipv6/rpl-collect/udp-sender.c b/examples/ipv6/rpl-collect/udp-sender.c
index 75d63e806..cc8ed3bc1 100644
--- a/examples/ipv6/rpl-collect/udp-sender.c
+++ b/examples/ipv6/rpl-collect/udp-sender.c
@@ -142,7 +142,7 @@ collect_common_send(void)
     }
     rtmetric = dag->rank;
     beacon_interval = (uint16_t) ((2L << dag->instance->dio_intcurrent) / 1000);
-    num_neighbors = RPL_PARENT_COUNT(dag);
+    num_neighbors = uip_ds6_nbr_num();
   } else {
     rtmetric = 0;
     beacon_interval = 0;