diff --git a/nixos/modules/misc/ids.nix b/nixos/modules/misc/ids.nix
index ac6af1ce8b77..3e8a5b07a5ed 100644
--- a/nixos/modules/misc/ids.nix
+++ b/nixos/modules/misc/ids.nix
@@ -328,7 +328,7 @@
       qemu-libvirtd = 301;
       # kvm = 302; # unused
       # render = 303; # unused
-      zeronet = 304;
+      # zeronet = 304; # removed 2019-01-03
       lirc = 305;
       lidarr = 306;
       slurm = 307;
@@ -629,7 +629,7 @@
       qemu-libvirtd = 301;
       kvm = 302; # default udev rules from systemd requires these
       render = 303; # default udev rules from systemd requires these
-      zeronet = 304;
+      # zeronet = 304; # removed 2019-01-03
       lirc = 305;
       lidarr = 306;
       slurm = 307;