diff --git a/pkgs/development/lisp-modules/asdf/2.26.nix b/pkgs/development/lisp-modules/asdf/2.26.nix
index e2f655a5b6ea..05851777a7fe 100644
--- a/pkgs/development/lisp-modules/asdf/2.26.nix
+++ b/pkgs/development/lisp-modules/asdf/2.26.nix
@@ -1,24 +1,20 @@
-{lib, stdenv, fetchurl, texinfo, texLive, perl}:
-let
-  s = # Generated upstream information
-  rec {
-    baseName="asdf";
-    version="2.26";
-    name="${baseName}-${version}";
-    url="http://common-lisp.net/project/asdf/archives/asdf-${version}.tar.gz";
-    sha256="1qzp444rgnqf1cz9v48nh0yvz7wjq9fjdpimifsfcjswaqi2xrdn";
-  };
-  buildInputs = [
-    texinfo texLive perl
-  ];
-in
-stdenv.mkDerivation {
-  inherit (s) name version;
-  inherit buildInputs;
+{ lib, stdenv, fetchurl, texinfo, texLive, perl }:
+
+stdenv.mkDerivation rec {
+  pname = "asdf";
+  version = "2.26";
+
   src = fetchurl {
-    inherit (s) url sha256;
+    url = "http://common-lisp.net/project/asdf/archives/asdf-${version}.tar.gz";
+    sha256 = "sha256-tuUuIlZcS+a0izXeJl3Ckp+/PYAWkZ0+Cw7blwkh9+M=";
   };
 
+  buildInputs = [
+    texinfo
+    texLive
+    perl
+  ];
+
   buildPhase = ''
     make asdf.lisp
     mkdir build
@@ -31,11 +27,11 @@ stdenv.mkDerivation {
     cp -r doc/* "$out"/share/doc/asdf/
     ln -s  "$out"/lib/common-lisp/{asdf/uiop,uiop}
   '';
+
   meta = with lib; {
-    inherit (s) version;
     description = "Standard software-system definition library for Common Lisp";
     license = licenses.mit;
-    maintainers = [maintainers.raskin];
+    maintainers = with maintainers; [ raskin ];
     platforms = platforms.linux;
   };
 }
diff --git a/pkgs/development/lisp-modules/asdf/3.1.nix b/pkgs/development/lisp-modules/asdf/3.1.nix
index 7e697d3a6376..11cee90bf1fe 100644
--- a/pkgs/development/lisp-modules/asdf/3.1.nix
+++ b/pkgs/development/lisp-modules/asdf/3.1.nix
@@ -1,24 +1,20 @@
-{lib, stdenv, fetchurl, texinfo, texLive, perl}:
-let
-  s = # Generated upstream information
-  rec {
-    baseName="asdf";
-    version="3.1.7";
-    name="${baseName}-${version}";
-    url="http://common-lisp.net/project/asdf/archives/asdf-${version}.tar.gz";
-    sha256="1g8wp3vi7gwrs22gnjy9lvrxqag3m8apxnryfs8n5bv6rln8bzzq";
-  };
-  buildInputs = [
-    texinfo texLive perl
-  ];
-in
-stdenv.mkDerivation {
-  inherit (s) name version;
-  inherit buildInputs;
+{ lib, stdenv, fetchurl, texinfo, texLive, perl }:
+
+stdenv.mkDerivation rec {
+  pname = "asdf";
+  version = "3.1.7";
+
   src = fetchurl {
-    inherit (s) url sha256;
+    url = "http://common-lisp.net/project/asdf/archives/asdf-${version}.tar.gz";
+    sha256 = "sha256-+P+FLM1mr2KRdj7bfhWq4ync86bJS/uE0Jm/E/e4HL0=";
   };
 
+  buildInputs = [
+    texinfo
+    texLive
+    perl
+  ];
+
   buildPhase = ''
     make build/asdf.lisp
     make -C doc asdf.info asdf.html
@@ -30,11 +26,11 @@ stdenv.mkDerivation {
     cp -r doc/* "$out"/share/doc/asdf/
     ln -s  "$out"/lib/common-lisp/{asdf/uiop,uiop}
   '';
+
   meta = with lib; {
-    inherit (s) version;
     description = "Standard software-system definition library for Common Lisp";
-    license = licenses.mit ;
-    maintainers = [maintainers.raskin];
+    license = licenses.mit;
+    maintainers = with maintainers; [ raskin ];
     platforms = platforms.unix;
   };
 }
diff --git a/pkgs/development/lisp-modules/asdf/default.nix b/pkgs/development/lisp-modules/asdf/default.nix
index eecea3f98b63..d1b45cb32c33 100644
--- a/pkgs/development/lisp-modules/asdf/default.nix
+++ b/pkgs/development/lisp-modules/asdf/default.nix
@@ -1,25 +1,20 @@
-{lib, stdenv, fetchurl, texinfo, texLive, perl}:
-let
-  s = # Generated upstream information
-  rec {
-    baseName="asdf";
-    version="3.3.4";
-    name="${baseName}-${version}";
-    hash="07npcxgq2m07w78k8gnz9i73kbw6ky2zh2pylhh9b69jvncdqkpy";
-    url="http://common-lisp.net/project/asdf/archives/asdf-3.3.4.tar.gz";
-    sha256="07npcxgq2m07w78k8gnz9i73kbw6ky2zh2pylhh9b69jvncdqkpy";
-  };
-  buildInputs = [
-    texinfo texLive perl
-  ];
-in
-stdenv.mkDerivation {
-  inherit (s) name version;
-  inherit buildInputs;
+{ lib, stdenv, fetchurl, texinfo, texLive, perl }:
+
+stdenv.mkDerivation rec {
+  pname = "asdf";
+  version = "3.3.4";
+
   src = fetchurl {
-    inherit (s) url sha256;
+    url = "http://common-lisp.net/project/asdf/archives/asdf-${version}.tar.gz";
+    sha256 = "sha256-/k7cmN0ymZUgpP4K+IWfhq85TkzfPjTR4QdUgV9n1x4=";
   };
 
+  buildInputs = [
+    texinfo
+    texLive
+    perl
+  ];
+
   buildPhase = ''
     make build/asdf.lisp
     make -C doc asdf.info asdf.html
@@ -31,11 +26,11 @@ stdenv.mkDerivation {
     cp -r doc/* "$out"/share/doc/asdf/
     ln -s  "$out"/lib/common-lisp/{asdf/uiop,uiop}
   '';
+
   meta = with lib; {
-    inherit (s) version;
     description = "Standard software-system definition library for Common Lisp";
-    license = licenses.mit ;
-    maintainers = [maintainers.raskin];
+    license = licenses.mit;
+    maintainers = with maintainers; [ raskin ];
     platforms = platforms.unix;
   };
 }
diff --git a/pkgs/development/lisp-modules/asdf/default.upstream b/pkgs/development/lisp-modules/asdf/default.upstream
deleted file mode 100644
index d8625182352f..000000000000
--- a/pkgs/development/lisp-modules/asdf/default.upstream
+++ /dev/null
@@ -1,2 +0,0 @@
-url http://common-lisp.net/project/asdf/archives/
-version_link asdf-[0-9].*[.]tar[.].*