diff --git a/bgpwtf/machines/edge01.waw.bgp.wtf.nix b/bgpwtf/machines/edge01.waw.bgp.wtf.nix
index 0f754f15..1ff21fbf 100644
--- a/bgpwtf/machines/edge01.waw.bgp.wtf.nix
+++ b/bgpwtf/machines/edge01.waw.bgp.wtf.nix
@@ -199,7 +199,7 @@ in rec {
     table = "aggregate";
     filterIn = ''
       # hswaw prefix from e2-customs
-      if net ~ [ 2a0d:eb00:4242::/64+ ] then accept;
+      if net ~ [ 2a0d:eb00:4242::/48+ ] then accept;
       # e2-customs link
       if net ~ [ 2a0d:eb00:2137:1::2/127+ ] then accept;
     '';