diff --git a/ops/nixos/lib/bgp.nix b/ops/nixos/lib/bgp.nix
index 71125a4f22..27f4be7b5e 100644
--- a/ops/nixos/lib/bgp.nix
+++ b/ops/nixos/lib/bgp.nix
@@ -418,5 +418,7 @@ in {
 
     services.tailscale.package = depot.nix.pkgs.tailscale;
     systemd.network.config.networkConfig.ManageForeignRoutes = "no";
+
+    systemd.services."systemd-resolved".environment.SYSTEMD_RESOLVED_SYNTHESIZE_HOSTNAME = "false";
   };
 }