diff --git a/hosts/microwave/configuration.nix b/hosts/microwave/configuration.nix
index 0f2860b..79d280e 100644
--- a/hosts/microwave/configuration.nix
+++ b/hosts/microwave/configuration.nix
@@ -36,7 +36,7 @@
     kernelParams = [ "nohibernate" ];
     zfs.devNodes = "/dev/";
     plymouth.enable = false;
-    tmpOnTmpfs = true;
+    tmp.useTmpfs = true;
   };
 
   services.zfs = {
diff --git a/hosts/toaster/zfs.nix b/hosts/toaster/zfs.nix
index a7e9d7a..f4bdeea 100644
--- a/hosts/toaster/zfs.nix
+++ b/hosts/toaster/zfs.nix
@@ -1,4 +1,4 @@
-{ config, pkgs, ... }: {
+{ pkgs, ... }: {
   services.fstrim.enable = true;
   services.zfs = {
     autoSnapshot.enable = true;
@@ -14,6 +14,6 @@
     supportedFilesystems = [ "zfs" ];
     kernelParams = [ "nohibernate" ];
     plymouth.enable = false;
-    tmpOnTmpfs = true;
+    tmp.useTmpfs = true;
   };
 }