diff --git a/modules/nixos/clicks/storage/impermanence/default.nix b/modules/nixos/clicks/storage/impermanence/default.nix
index 646e7b5..7d2a94b 100644
--- a/modules/nixos/clicks/storage/impermanence/default.nix
+++ b/modules/nixos/clicks/storage/impermanence/default.nix
@@ -64,7 +64,7 @@
     };
   };
 
-  config = lib.mkIf cfg.enable {
+  config = lib.mkIf cfg.enable ({
     boot.initrd.postDeviceCommands = lib.mkAfter ''
       mkdir /impermanent_fs
       mount ${cfg.devices.root} /impermanent_fs
@@ -102,18 +102,20 @@
       neededForBoot = true;
       fsType = "btrfs";
     };
-
-    environment.persistence."/persist/${cfg.volumes.persistent_data}" = {
-      directories = [
-        "/var/lib/nixos" # https://github.com/nix-community/impermanence/issues/178
-      ] ++ cfg.persist.directories;
-      files = [
-        "/etc/machine-id"
-        "/etc/ssh/ssh_host_ed25519_key"
-        "/etc/ssh/ssh_host_ed25519_key.pub"
-        "/etc/ssh/ssh_host_rsa_key"
-        "/etc/ssh/ssh_host_rsa_key.pub"
-      ] ++ cfg.persist.files;
+  } // {
+    environment = lib.optionalAttrs cfg.enable {
+      persistence."/persist/${cfg.volumes.persistent_data}" = {
+        directories = [
+          "/var/lib/nixos" # https://github.com/nix-community/impermanence/issues/178
+        ] ++ cfg.persist.directories;
+        files = [
+          "/etc/machine-id"
+          "/etc/ssh/ssh_host_ed25519_key"
+          "/etc/ssh/ssh_host_ed25519_key.pub"
+          "/etc/ssh/ssh_host_rsa_key"
+          "/etc/ssh/ssh_host_rsa_key.pub"
+        ] ++ cfg.persist.files;
+      };
     };
-  };
+  });
 }