diff --git a/lib/default.nix b/lib/default.nix
index ca0c035..39f997a 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -191,7 +191,7 @@ rec {
     };
     lvmDisk' = vg: lv: lvmDisk'' lv vg lv;
     lvmDisk = lvmDisk' "main";
-    disk = vm: lv: lvmDisk' lv "vm-${vm}-${lv}";
+    disk = vm: lv: lvmDisk'' lv "main" "vm-${vm}-${lv}";
   };
 
   deploy-rs =
diff --git a/nixos/boxes/colony/vms/default.nix b/nixos/boxes/colony/vms/default.nix
index 0110e90..8aff696 100644
--- a/nixos/boxes/colony/vms/default.nix
+++ b/nixos/boxes/colony/vms/default.nix
@@ -212,8 +212,8 @@
             cleanShutdown.timeout = 120;
             drives = [
               (mkMerge [ (vm.disk "darts" "root") { frontendOpts.bootindex = 0; } ])
-              (vm.lvmDisk' "media" "darts-media")
-              (vm.lvmDisk' "ext" "darts-ext")
+              (vm.lvmDisk'' "media" "main" "darts-media")
+              (vm.lvmDisk'' "ext" "main" "darts-ext")
             ];
           };
         };