diff --git a/pkgs/by-name/fu/furnace/package.nix b/pkgs/by-name/fu/furnace/package.nix
index 62d60e8abbcd..93b67977a236 100644
--- a/pkgs/by-name/fu/furnace/package.nix
+++ b/pkgs/by-name/fu/furnace/package.nix
@@ -63,6 +63,7 @@ stdenv.mkDerivation (finalAttrs: {
       libsndfile
       rtmidi
       SDL2
+      libX11
       zlib
       portaudio
     ]