diff --git a/sys/contrib/rdma/krping/krping.c b/sys/contrib/rdma/krping/krping.c
index 667af401f36b..e99ff7f63773 100644
--- a/sys/contrib/rdma/krping/krping.c
+++ b/sys/contrib/rdma/krping/krping.c
@@ -261,6 +261,7 @@ static int krping_cma_event_handler(struct rdma_cm_id *cma_id,
 
 	case RDMA_CM_EVENT_ROUTE_RESOLVED:
 		cb->state = ROUTE_RESOLVED;
+		cb->child_cm_id = cma_id;
 		wake_up_interruptible(&cb->sem);
 		break;