diff --git a/nix/configuration/roles/media/default.nix b/nix/configuration/roles/media/default.nix
index 6cafc12..36826b9 100644
--- a/nix/configuration/roles/media/default.nix
+++ b/nix/configuration/roles/media/default.nix
@@ -39,6 +39,7 @@ in
           ffmpeg
           libva-utils # for vainfo
           vdpauinfo
+          mkvtoolnix-cli # for mkvmerge
         ];
       }
       (lib.mkIf config.me.graphical {