diff --git a/overlays/cross.nix b/overlays/cross.nix
index f393677f..3cae26c4 100644
--- a/overlays/cross.nix
+++ b/overlays/cross.nix
@@ -733,6 +733,10 @@ in {
       final.autoPatchelfHook
     ];
   });
+  koreader-from-src = prev.koreader-from-src.override {
+    # fixes runtime error: luajit: ./ffi/util.lua:757: attempt to call field 'pack' (a nil value)
+    inherit (emulated) luajit;
+  };
   libgweather = rmNativeInputs [ final.glib ] (prev.libgweather.override {
     # alternative to emulating python3 is to specify it in `buildInputs` instead of `nativeBuildInputs` (upstream),
     #   but presumably that's just a different way to emulate it.