diff --git a/mediabox/configuration.nix b/mediabox/configuration.nix
index 92f7d16..f6f8645 100644
--- a/mediabox/configuration.nix
+++ b/mediabox/configuration.nix
@@ -37,7 +37,7 @@
     kernelModules = ["acpi_call"];
     kernelPackages = pkgs.linuxPackages_latest;
     kernelParams = ["msr.allow_writes=on"];
-    boot.kernel.sysctl = {
+    kernel.sysctl = {
       "net.core.default_qdisc" = "fq";
       "net.ipv4.tcp_congestion_control" = "bbr";
     };