diff --git a/ops/nixos/blade-tuvok/default.nix b/ops/nixos/blade-tuvok/default.nix
index fb3e091529..f333dd5183 100644
--- a/ops/nixos/blade-tuvok/default.nix
+++ b/ops/nixos/blade-tuvok/default.nix
@@ -35,7 +35,7 @@ in {
         ip -n wg-endpoint addr add 2a09:a441::f00f/48 dev ve-int
         ip -n wg-endpoint route add default via 92.118.28.1
         ip -n wg-endpoint route add default via 2a09:a441::1
-        ip netns exec wg-endpoint sysctl net.ipv4.ip_forward=1 net.ipv6.conf.all.forwarding=1 net.ipv6.conf.default.forwarding=1
+        ip netns exec wg-endpoint ${pkgs.procps}/bin/sysctl net.ipv4.ip_forward=1 net.ipv6.conf.all.forwarding=1 net.ipv6.conf.default.forwarding=1
       )
     '';
     nat.extraCommands = ''