diff --git a/machines/shinobu/services/router/common.nix b/machines/shinobu/services/router/common.nix
index a1a4d76..9cae934 100644
--- a/machines/shinobu/services/router/common.nix
+++ b/machines/shinobu/services/router/common.nix
@@ -1,3 +1,4 @@
+{ ... }:
 {
   domain = "home.sbruder.de";
   tc = {
diff --git a/machines/shinobu/services/router/default.nix b/machines/shinobu/services/router/default.nix
index 1cc8f36..6dcc197 100644
--- a/machines/shinobu/services/router/default.nix
+++ b/machines/shinobu/services/router/default.nix
@@ -27,7 +27,7 @@
 # Thanks to Intel’s wisdom, it’s not possible to use 5GHz in AP mode.
 { config, lib, pkgs, ... }:
 let
-  cfg = import ./common.nix;
+  cfg = pkgs.callPackage ./common.nix { };
 in
 {
   imports = [
diff --git a/machines/shinobu/services/router/dnsmasq.nix b/machines/shinobu/services/router/dnsmasq.nix
index 867f946..84b2ee1 100644
--- a/machines/shinobu/services/router/dnsmasq.nix
+++ b/machines/shinobu/services/router/dnsmasq.nix
@@ -1,6 +1,6 @@
-{ config, ... }:
+{ config, pkgs, ... }:
 let
-  cfg = import ./common.nix;
+  cfg = pkgs.callPackage ./common.nix { };
 in
 {
   services.dnsmasq = {
diff --git a/machines/shinobu/services/router/nft.nix b/machines/shinobu/services/router/nft.nix
index dce4ecf..af5c516 100644
--- a/machines/shinobu/services/router/nft.nix
+++ b/machines/shinobu/services/router/nft.nix
@@ -1,6 +1,6 @@
-{ config, lib, ... }:
+{ config, lib, pkgs, ... }:
 let
-  cfg = import ./common.nix;
+  cfg = pkgs.callPackage ./common.nix { };
 
   mkKeyValue = lib.generators.mkKeyValueDefault
     rec {
diff --git a/machines/shinobu/services/router/tc.nix b/machines/shinobu/services/router/tc.nix
index ac5c2a2..33074a7 100644
--- a/machines/shinobu/services/router/tc.nix
+++ b/machines/shinobu/services/router/tc.nix
@@ -8,7 +8,7 @@
 # I averaged a longer iperf3 run to around 509 Kbit/s ≈ 4.17 Mbit/s (excluding the initial burst).
 { lib, pkgs, utils, ... }:
 let
-  cfg = ((import ./common.nix).tc);
+  cfg = ((pkgs.callPackage ./common.nix { }).tc);
 
   mkClass =
     { minor