diff --git a/pkgs/by-name/ma/materia-theme-transparent/default.nix b/pkgs/by-name/ma/materia-theme-transparent/default.nix
deleted file mode 100644
index 9eccec1c343b..000000000000
--- a/pkgs/by-name/ma/materia-theme-transparent/default.nix
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-  lib,
-  fetchFromGitHub,
-  materia-theme,
-}:
-materia-theme.overrideAttrs (oldAttrs: rec {
-  pname = "materia-theme-transparent";
-  version = "0-unstable-2021-03-22";
-
-  src = fetchFromGitHub {
-    owner = "ckissane";
-    repo = "materia-theme-transparent";
-    rev = "c5d95bbddd59a717bfc4976737af429a89ba74e0";
-    hash = "sha256-dHcwPTZFWO42wu1LbtGCMm2w/YHbjSUJnRKcaFllUbs=";
-  };
-
-  meta = {
-    description = "Transparent Material Design theme for GNOME/GTK based desktop environments";
-    homepage = "https://github.com/ckissane/materia-theme-transparent";
-    license = lib.licenses.gpl2Only;
-    platforms = lib.platforms.linux;
-    maintainers = [ lib.maintainers.corbinwunderlich ];
-  };
-})