diff --git a/configuration.md b/configuration.md
index 5cbeb43..523dae1 100644
--- a/configuration.md
+++ b/configuration.md
@@ -73,7 +73,6 @@ On Linux, something like the following should be sufficient to advertise a prefi
 interface eth0
 {
         AdvSendAdvert on;
-        AdvDefaultLifetime 0;
         prefix 300:1111:2222:3333::/64 {
             AdvOnLink on;
             AdvAutonomous on;