diff --git a/nixos/modules/services/networking/yggdrasil.xml b/nixos/modules/services/networking/yggdrasil.xml
index c012cd4a9294..a341d5d8153b 100644
--- a/nixos/modules/services/networking/yggdrasil.xml
+++ b/nixos/modules/services/networking/yggdrasil.xml
@@ -84,7 +84,6 @@ in {
       interface eth0
       {
         AdvSendAdvert on;
-        AdvDefaultLifetime 0;
         prefix ${prefix}::/64 {
           AdvOnLink on;
           AdvAutonomous on;