diff --git a/flake.nix b/flake.nix
index 540babc..7ac4a94 100644
--- a/flake.nix
+++ b/flake.nix
@@ -217,7 +217,7 @@
 
     stashy-sd = inputs.nixos-generators.nixosGenerate {
       system = "aarch64-linux";
-      modules = [ ./machines/stashy ];
+      modules = [ ./machines/stashy inputs.nixos-hardware.nixosModules.raspberry-pi-4 ];
       specialArgs = { inherit inputs; };
       format = "sd-aarch64";
     };
diff --git a/machines/stashy/default.nix b/machines/stashy/default.nix
index b69d97d..3f0a39d 100644
--- a/machines/stashy/default.nix
+++ b/machines/stashy/default.nix
@@ -115,7 +115,9 @@
   };
 
   boot.tmp = {
-    useTmpfs = true;
+    # Not using tmpfs as it causes nixos-generators to eat
+    # RAM like a furious pete.
+    useTmpfs = false;
     cleanOnBoot = true;
   };