diff --git a/pkgs/by-name/ma/makemkv/package.nix b/pkgs/by-name/ma/makemkv/package.nix
index d41778ef3915..6d4ffd64d016 100644
--- a/pkgs/by-name/ma/makemkv/package.nix
+++ b/pkgs/by-name/ma/makemkv/package.nix
@@ -2,6 +2,7 @@
   autoPatchelfHook,
   common-updater-scripts,
   curl,
+  expat,
   fetchurl,
   ffmpeg,
   lib,
@@ -51,6 +52,7 @@ stdenv.mkDerivation (
       qt5.wrapQtAppsHook
     ];
     buildInputs = [
+      expat
       ffmpeg
       openssl
       qt5.qtbase