diff --git a/pkgs/nix-portable/default.nix b/pkgs/nix-portable/default.nix
index d08bf5e7..9fc3d1ea 100644
--- a/pkgs/nix-portable/default.nix
+++ b/pkgs/nix-portable/default.nix
@@ -210,6 +210,9 @@ let
       echo "extra-substituters = https://jungle.bsc.es/cache">> \$dir/conf/nix.conf
       echo "extra-trusted-public-keys = jungle.bsc.es:pEc7MlAT0HEwLQYPtpkPLwRsGf80ZI26aj29zMw/HH0=" >> \$dir/conf/nix.conf
 
+      echo "extra-system-features = sys-devices" >> \$dir/conf/nix.conf
+      echo "extra-sandbox-paths = /sys/devices/system/cpu=/sys/devices/system/cpu /sys/devices/system/node=/sys/devices/system/node" >> \$dir/conf/nix.conf
+
       # configurable config
       echo "sandbox = \$NP_CONF_SANDBOX" >> \$dir/conf/nix.conf
       echo "store = \$NP_CONF_STORE" >> \$dir/conf/nix.conf