diff --git a/default.nix b/default.nix
index aa30d41..d5f29a8 100644
--- a/default.nix
+++ b/default.nix
@@ -20,6 +20,8 @@ in
   colors = pkgs.callPackage ./pkgs/colors { };
   eplot = pkgs.callPackage ./pkgs/eplot { };
 
+  matrix-wug = pkgs.callPackage ./pkgs/matrix-wug { };
+
   rank_photos = pkgs.callPackage ./pkgs/rank_photos { };
   vcsi = pkgs.callPackage ./pkgs/vcsi {};