diff --git a/nixos/modules/config/networking.nix b/nixos/modules/config/networking.nix
index 8b352dad472..eab4e73e19a 100644
--- a/nixos/modules/config/networking.nix
+++ b/nixos/modules/config/networking.nix
@@ -233,7 +233,7 @@ in
           oneToString = set: ip: ip + " " + concatStringsSep " " set.${ip};
           allToString = set: concatMapStringsSep "\n" (oneToString set) (attrNames set);
         in ''
-          ${allToString cfg.hosts}
+          ${allToString (filterAttrs (_: v: v != []) cfg.hosts)}
           ${cfg.extraHosts}
         '';