diff --git a/src/algo_rr.c b/src/algo_rr.c
index dbef6d8..2f7cc9a 100644
--- a/src/algo_rr.c
+++ b/src/algo_rr.c
@@ -136,7 +136,7 @@ void rr_pkt_register(struct evt_core_ctx* ctx,  struct evt_core_fdinfo* fdinfo,
     if (timeout <= 0) timeout = 0;
     int idx_waited = (bp->ip.ap.str.id - 1) % PACKET_BUFFER_SIZE;
     rr->wait[idx_waited].on = 1;
-    rr->wait[idx_waited].id = bp->ip.ap.str.id;
+    rr->wait[idx_waited].id = bp->ip.ap.str.id - 1;
     rr->wait[idx_waited].link_num = bp->ip.ap.str.prevlink;
     rr->wait[idx_waited].timer_fd = set_timeout(ctx, timeout, &rr->wait[idx_waited]);
   }