diff --git a/nixos/modules/virtualisation/docker.nix b/nixos/modules/virtualisation/docker.nix
index 954e33ff24a3..29f133786d8d 100644
--- a/nixos/modules/virtualisation/docker.nix
+++ b/nixos/modules/virtualisation/docker.nix
@@ -151,8 +151,8 @@ in
   config = mkIf cfg.enable (mkMerge [{
       boot.kernelModules = [ "bridge" "veth" ];
       boot.kernel.sysctl = {
-        "net.ipv4.conf.all.forwarding" = mkOverride 99 true;
-        "net.ipv4.conf.default.forwarding" = mkOverride 99 true;
+        "net.ipv4.conf.all.forwarding" = mkOverride 98 true;
+        "net.ipv4.conf.default.forwarding" = mkOverride 98 true;
       };
       environment.systemPackages = [ cfg.package ]
         ++ optional cfg.enableNvidia pkgs.nvidia-docker;