diff --git a/pkgs/development/tools/build-managers/nant/default.nix b/pkgs/development/tools/build-managers/nant/default.nix
deleted file mode 100644
index c394d87e09ec..000000000000
--- a/pkgs/development/tools/build-managers/nant/default.nix
+++ /dev/null
@@ -1,71 +0,0 @@
-{ stdenv, fetchFromGitHub, pkgconfig, mono, makeWrapper
-, targetVersion ? "4.5" }:
-
-let
-   version = "2015-11-15";
-
-  src = fetchFromGitHub {
-    owner = "nant";
-    repo = "nant";
-    rev = "19bec6eca205af145e3c176669bbd57e1712be2a";
-    sha256 = "11l5y76csn686p8i3kww9s0sxy659ny9l64krlqg3y2nxaz0fk6l";
-  };
-
-  nant-bootstrapped = stdenv.mkDerivation {
-    name = "nant-bootstrapped-${version}";
-    inherit src;
-
-  nativeBuildInputs = [ pkgconfig ];
-    buildInputs = [ mono makeWrapper ];
-
-    buildFlags = "bootstrap";
-
-    dontStrip = true;
-
-    installPhase = ''
-      mkdir -p $out/lib/nant-bootstrap
-      cp -r bootstrap/* $out/lib/nant-bootstrap
-
-      mkdir -p $out/bin
-      makeWrapper "${mono}/bin/mono" $out/bin/nant \
-        --add-flags "$out/lib/nant-bootstrap/NAnt.exe"
-    '';
-  };
-
-in stdenv.mkDerivation {
-  name = "nant-${version}";
-  inherit src;
-
-  nativeBuildInputs = [ pkgconfig ];
-  buildInputs = [ mono makeWrapper nant-bootstrapped ];
-
-  dontStrip = true;
-
-  buildPhase = ''
-    nant -t:mono-${targetVersion}
-  '';
-
-  installPhase = ''
-    mkdir -p $out/lib/nant
-    cp -r build/mono-${targetVersion}.unix/nant-debug/bin/* $out/lib/nant/
-
-    mkdir -p $out/bin
-    makeWrapper "${mono}/bin/mono" $out/bin/nant \
-      --add-flags "$out/lib/nant/NAnt.exe"
-  '';
-
-  meta = with stdenv.lib; {
-    homepage = http://nant.sourceforge.net;
-    description = "NAnt is a free .NET build tool";
-
-    longDescription = ''
-      NAnt is a free .NET build tool. In theory it is kind of like make without
-      make's wrinkles. In practice it's a lot like Ant.
-    '';
-
-    license = licenses.gpl2Plus;
-    maintainers = with maintainers; [ zohl ];
-    platforms = platforms.linux;
-  };
-}
-
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8c36b24bcf28..f5ca0d6a1f3d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8492,8 +8492,6 @@ with pkgs;
 
   nailgun = callPackage ../development/tools/nailgun { };
 
-  nant = callPackage ../development/tools/build-managers/nant { };
-
   ninja = callPackage ../development/tools/build-managers/ninja { };
 
   gn = callPackage ../development/tools/build-managers/gn { };