diff --git a/nixos/modules/config/networking.nix b/nixos/modules/config/networking.nix
index a1ee6a4304ac..1eb6fb43604a 100644
--- a/nixos/modules/config/networking.nix
+++ b/nixos/modules/config/networking.nix
@@ -215,6 +215,8 @@ in
 
     networking.hosts = {
       "127.0.0.1" = [ "localhost" ];
+    } // optionalAttrs (cfg.hostName != "") {
+      "127.0.1.1" = [ cfg.hostName ];
     } // optionalAttrs cfg.enableIPv6 {
       "::1" = [ "localhost" ];
     };