diff --git a/systems/x86_64-linux/a1d1/default.nix b/systems/x86_64-linux/a1d1/default.nix
index 4f7e821..cd71bbf 100644
--- a/systems/x86_64-linux/a1d1/default.nix
+++ b/systems/x86_64-linux/a1d1/default.nix
@@ -32,7 +32,10 @@
       raid.enable = true;
       impermanence = {
         enable = true;
-        device = "/dev/disk/by-uuid/ab5c2f52-a737-4b29-a505-e3d0b9d0714c";
+        devices = {
+          root = "/dev/disk/by-uuid/ab5c2f52-a737-4b29-a505-e3d0b9d0714c";
+          persist = "/dev/md/a1d1:persist";
+        };
       };
     };
   };