diff --git a/pkgs/development/libraries/quickder/default.nix b/pkgs/by-name/qu/quickder/package.nix
similarity index 72%
rename from pkgs/development/libraries/quickder/default.nix
rename to pkgs/by-name/qu/quickder/package.nix
index c3de38398084..4e66ebf5f360 100644
--- a/pkgs/development/libraries/quickder/default.nix
+++ b/pkgs/by-name/qu/quickder/package.nix
@@ -1,14 +1,15 @@
-{ lib
-, stdenv
-, fetchFromGitLab
-, python3
-, cmake
-, doxygen
-, graphviz
-, quickmem
-, arpa2common
-, arpa2cm
-, ensureNewerSourcesForZipFilesHook
+{
+  lib,
+  stdenv,
+  fetchFromGitLab,
+  python3,
+  cmake,
+  doxygen,
+  graphviz,
+  quickmem,
+  arpa2common,
+  arpa2cm,
+  ensureNewerSourcesForZipFilesHook,
 }:
 
 stdenv.mkDerivation rec {
@@ -32,17 +33,18 @@ stdenv.mkDerivation rec {
   buildInputs = [
     arpa2cm
     arpa2common
-    (python3.withPackages (ps: with ps; [
-      asn1ate
-      colored
-      pyparsing
-      setuptools
-      six
-    ]))
+    (python3.withPackages (
+      ps: with ps; [
+        asn1ate
+        colored
+        pyparsing
+        setuptools
+        six
+      ]
+    ))
     quickmem
   ];
 
-
   postPatch = ''
     substituteInPlace setup.py --replace 'pyparsing==' 'pyparsing>='
   '';
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8cc0cbc90f96..945ab085d9c5 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -22489,8 +22489,6 @@ with pkgs;
 
   quesoglc = callPackage ../development/libraries/quesoglc { };
 
-  quickder = callPackage ../development/libraries/quickder { };
-
   quickmem = callPackage ../development/libraries/quickmem { };
 
   quicksynergy = callPackage ../applications/misc/quicksynergy { };