diff --git a/configurations/london/default.nix b/configurations/london/default.nix
index 46ebe61..e38b70d 100644
--- a/configurations/london/default.nix
+++ b/configurations/london/default.nix
@@ -19,6 +19,9 @@
 
   # Nix
   nixpkgs.config.allowUnfree = true;
+  nix.settings.system-features = [
+    "kvm"
+  ];
 
   services.openvpn.servers = {
     htb = {