diff --git a/systems/portal-1/default.nix b/systems/portal-1/default.nix
index 0f81175..339af35 100644
--- a/systems/portal-1/default.nix
+++ b/systems/portal-1/default.nix
@@ -16,8 +16,6 @@
     ./monitoring.nix
   ];
 
-  nixpkgs.hostPlatform = "x86_64-linux";
-
   boot = {
     # Avoid consuming the VM's limited memory for /tmp.
     tmp.useTmpfs = false;