diff --git a/nix/nixos-module/container/bird.nix b/nix/nixos-module/container/bird.nix
index aa44d69..47f972a 100644
--- a/nix/nixos-module/container/bird.nix
+++ b/nix/nixos-module/container/bird.nix
@@ -111,6 +111,7 @@ in
             interface "${net}" {
               min ra interval 10;
               max ra interval 60;
+              solicited ra unicast yes;
 
               ${builtins.concatStringsSep "\n" (
                 map (subnet6: ''