diff --git a/shared/hardware/impermanence.nix b/shared/hardware/impermanence.nix
index 89023e4..fee61f7 100644
--- a/shared/hardware/impermanence.nix
+++ b/shared/hardware/impermanence.nix
@@ -20,13 +20,16 @@
 
   fileSystems."/persist".neededForBoot = true;
 
-  services.zfs = {
-    autoScrub.enable = true;
-    autoSnapshot = {
-      enable = true;
-      flags = "-k -p --utc";
+  services = {
+    fstrimg.interval = "daily";
+    zfs = {
+      autoScrub.enable = true;
+      autoSnapshot = {
+        enable = true;
+        flags = "-k -p --utc";
+      };
+      trim.interval = "daily";
     };
-    trim.interval = "daily";
   };
 
   boot.initrd.postResumeCommands = lib.mkAfter ''