diff --git a/nixos/modules/config/networking.nix b/nixos/modules/config/networking.nix
index c0b0c8494c8..7065368f715 100644
--- a/nixos/modules/config/networking.nix
+++ b/nixos/modules/config/networking.nix
@@ -25,7 +25,7 @@ in
       default = null;
       example = "foo.example.com";
       description = ''
-        Full qualified domain name, if any.
+        Fully qualified domain name, if any.
       '';
     };