diff --git a/hosts/leon/default.nix b/hosts/leon/default.nix
index 7c0c730d..c0bcd05f 100644
--- a/hosts/leon/default.nix
+++ b/hosts/leon/default.nix
@@ -40,6 +40,13 @@
     autoNetSetup = true;
   };
 
+  writableStoreOverlay = "/nix/.rw-store";
+ 	volumes = [ {
+    image = "nix-store-overlay.img";
+    mountPoint = config.microvm.writableStoreOverlay;
+    size = 3048;
+  } ];
+
   networking = {
     hostName = "leon";
     firewall.enable = true;