diff --git a/instances/heimdall/hardware-configuration.nix b/instances/heimdall/hardware-configuration.nix
index 4ea128b..52727e7 100644
--- a/instances/heimdall/hardware-configuration.nix
+++ b/instances/heimdall/hardware-configuration.nix
@@ -15,15 +15,22 @@
     extraModulePackages = [ ];
   };
 
-  fileSystems."/" = {
-    device = "/dev/disk/by-uuid/24017c97-041e-460a-9d0e-3e494c91a03e";
-    fsType = "btrfs";
-  };
+  fileSystems = {
+    "/" = {
+      device = "/dev/disk/by-uuid/24017c97-041e-460a-9d0e-3e494c91a03e";
+      fsType = "btrfs";
+    };
 
-  fileSystems."/boot" = {
-    device = "/dev/disk/by-uuid/7F42-D513";
-    fsType = "vfat";
-    options = [ "fmask=0022" "dmask=0022" ];
+    "/mnt/raid" = {
+      device = "/dev/disk/by-uuid/d3d487e9-4ed8-4a1e-9abc-ebb0c1dc80d9";
+      fsType = "btrfs";
+    };
+
+    "/boot" = {
+      device = "/dev/disk/by-uuid/7F42-D513";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+    };
   };
 
   swapDevices = [ ];