diff --git a/pkgs/development/libraries/smokegen/default.nix b/pkgs/development/libraries/smokegen/default.nix
deleted file mode 100644
index 643ae1064db7..000000000000
--- a/pkgs/development/libraries/smokegen/default.nix
+++ /dev/null
@@ -1,21 +0,0 @@
-{ pkgs, lib, ... }:
-
-pkgs.stdenv.mkDerivation rec {
-  pname = "smokegen";
-  version = "v4.14.3";
-  src = pkgs.fetchzip {
-    url = "https://invent.kde.org/unmaintained/${pname}/-/archive/${version}/${pname}-${version}.tar.gz";
-    hash = "sha256-finsoruPeJZLawIjNUJ25Pq54eaCByfALVraNQJPk7c=";
-  };
-  buildInputs = [ pkgs.cmake pkgs.qt4 ];
-  buildPhase = ''
-      cmake .
-    '';
-  meta = with lib; {
-    description = "A general purpose C++ parser with a plugin infrastructure";
-    homepage = "https://invent.kde.org/unmaintained/smokegen";
-    license = licenses.gpl2Only;
-    platforms = platforms.unix;
-    maintainers = with maintainers; [ uthar ];
-  };
-}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d63681b736d9..566ee8540fe1 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6342,8 +6342,6 @@ with pkgs;
 
   simg2img = callPackage ../tools/filesystems/simg2img { };
 
-  smokegen = callPackage ../development/libraries/smokegen { };
-
   snazy = callPackage ../development/tools/snazy { };
 
   snippetpixie = callPackage ../tools/text/snippetpixie { };