diff --git a/nixops/rc-hardware-configuration.nix b/nixops/rc-hardware-configuration.nix
index cd258e5..573bf3c 100644
--- a/nixops/rc-hardware-configuration.nix
+++ b/nixops/rc-hardware-configuration.nix
@@ -24,6 +24,11 @@
       options = [ "fmask=0022" "dmask=0022" ];
     };
 
+  fileSystems."/opt" =
+    { device = "/dev/disk/by-uuid/cf0f51b6-7b95-4c74-9390-37dc4c86f32b";
+      fsType = "ext4";
+    };
+
   swapDevices = [ ];
 
   # Enables DHCP on each ethernet and wireless interface. In case of scripted networking