diff --git a/nixos/modules/private-storage.nix b/nixos/modules/private-storage.nix
index f27e6ec8d9c82df4a06b6b4816c4b6e0eb38b849..d144fba966224c8f23975114da34dca99d6cdb7f 100644
--- a/nixos/modules/private-storage.nix
+++ b/nixos/modules/private-storage.nix
@@ -110,6 +110,8 @@ in
         };
         storage =
         { enabled = true;
+          # Put the storage where we have a lot of space configured.
+          storage_dir = "/storage";
           # Turn on our plugin.
           plugins = "privatestorageio-zkapauthz-v1";
         };