diff --git a/nixos/modules/services/networking/zapret.nix b/nixos/modules/services/networking/zapret.nix
index 6d99be824ca3..53e602670b9f 100644
--- a/nixos/modules/services/networking/zapret.nix
+++ b/nixos/modules/services/networking/zapret.nix
@@ -35,7 +35,7 @@ in
         Specify the bypass parameters for Zapret binary.
         There are no universal parameters as they vary between different networks, so you'll have to find them yourself.
 
-        This can be done by running the `blockcheck` binary from zapret package, i.e. `nix-shell -p zapret --command blockcheck`.
+        This can be done by running the `blockcheck` binary from zapret package, i.e. `nix-shell -p nftables zapret --command blockcheck` (or `iptables` instead of `nftables` if that is what your firewall is using).
         It'll try different params and then tell you which params are working for your network.
       '';
     };