diff --git a/modules/nixos/homeassistant/services/esphome/default.nix b/modules/nixos/homeassistant/services/esphome/default.nix
index af3f031..9d095af 100644
--- a/modules/nixos/homeassistant/services/esphome/default.nix
+++ b/modules/nixos/homeassistant/services/esphome/default.nix
@@ -13,7 +13,7 @@ let
   # espressif32 platform builder can import it (needed for LittleFS support).
   esphomeWithLittlefs = pkgs.esphome.overridePythonAttrs (oldAttrs: {
     makeWrapperArgs = (oldAttrs.makeWrapperArgs or [ ]) ++ [
-      "--prefix PYTHONPATH : ${pkgs.${namespace}.littlefs-python}/${pkgs.python3.sitePackages}"
+      "--prefix PYTHONPATH : ${pkgs.python3Packages.pyfatfs}/${pkgs.${namespace}.littlefs-python}/${pkgs.python3.sitePackages}"
     ];
   });
 in