diff --git a/Optional-features.md b/Optional-features.md
index d89959e..ab9c1e5 100644
--- a/Optional-features.md
+++ b/Optional-features.md
@@ -35,7 +35,7 @@ Luma3DS has various optional features that are configurable via its config menu.
    * `agb.firm`: AGB_FIRM, used for Gameboy Advance Virtual Console games.
    * `safe.firm`: SAFE_FIRM, NATIVE_FIRM for the 3DS' Safe Mode.
    * `sysupdater.firm`:
-   * `name.cxi`: Any builtin sysmodule can be loaded externally, i.e. `sm.cxi`, `pm.cxi`, `pxi.cxi`, etc. External sysmodule loading is unavailable if loading a NATIVE/SAFE_FIRM older than 3.0.0.
+   * `name.cxi`: Any builtin sysmodule can be loaded externally, i.e. `fs.cxi`, `pm.cxi`, `loader.cxi`, etc. External sysmodule loading is unavailable if loading a NATIVE/SAFE_FIRM older than 3.0.0.
    * **Note:** If your FIRMs are NUS-encrypted, you must also include the corresponding cetk file, `cetk`, `cetk_twl`, `cetk_agb`, cetk_safe`, and `cetk_sysupdater` respectively.
 
 * **Enable game patching:** This option enables various game patching functions: external .code and exheader loading, IPS patching, LayeredFS, and Locale Emulation.