diff --git a/pkgs/data/themes/kde2/default.nix b/pkgs/data/themes/kde2/default.nix
deleted file mode 100644
index 4eab64997811..000000000000
--- a/pkgs/data/themes/kde2/default.nix
+++ /dev/null
@@ -1,46 +0,0 @@
-{
-  lib,
-  fetchFromGitHub,
-  mkDerivation,
-  cmake,
-  extra-cmake-modules,
-  qtbase,
-  kcoreaddons,
-  kdecoration,
-}:
-
-mkDerivation rec {
-  pname = "kde2-decoration";
-  version = "1.1";
-
-  src = fetchFromGitHub {
-    owner = "repos-holder";
-    repo = "kdecoration2-kde2";
-    rev = version;
-    sha256 = "y2q1j36EURJc7k1huqhEH1Z82PnVSKlfx20bpQWY28c=";
-  };
-
-  outputs = [
-    "out"
-    "dev"
-  ];
-
-  nativeBuildInputs = [
-    cmake
-    extra-cmake-modules
-  ];
-
-  buildInputs = [
-    qtbase
-    kcoreaddons
-    kdecoration
-  ];
-
-  meta = with lib; {
-    description = "KDE 2 window decoration ported to Plasma 5";
-    homepage = "https://github.com/repos-holder/kdecoration2-kde2";
-    license = licenses.bsd2;
-    platforms = platforms.linux;
-    maintainers = [ ];
-  };
-}
diff --git a/pkgs/top-level/qt5-packages.nix b/pkgs/top-level/qt5-packages.nix
index 1624ace0a2c0..f7364604ea29 100644
--- a/pkgs/top-level/qt5-packages.nix
+++ b/pkgs/top-level/qt5-packages.nix
@@ -150,8 +150,6 @@ makeScopeWithSplicing' {
 
         kdb = callPackage ../development/libraries/kdb { };
 
-        kde2-decoration = callPackage ../data/themes/kde2 { };
-
         kcolorpicker = callPackage ../development/libraries/kcolorpicker { };
 
         kdiagram = callPackage ../development/libraries/kdiagram { };