diff --git a/pkgs/applications/science/logic/coq/HEAD.nix b/pkgs/applications/science/logic/coq/HEAD.nix
deleted file mode 100644
index 968ea74e2960..000000000000
--- a/pkgs/applications/science/logic/coq/HEAD.nix
+++ /dev/null
@@ -1,81 +0,0 @@
-# - coqide compilation can be disabled by setting buildIde to false;
-# - The csdp program used for the Micromega tactic is statically referenced.
-#   However, coq can build without csdp by setting it to null.
-#   In this case some Micromega tactics will search the user's path for the csdp program and will fail if it is not found.
-
-{stdenv, fetchgit, writeText, pkgconfig, ocamlPackages_4_02, ncurses, buildIde ? true, csdp ? null}:
-
-let
-  version = "2017-02-03";
-  coq-version = "8.6";
-  ideFlags = if buildIde then "-lablgtkdir ${ocamlPackages_4_02.lablgtk}/lib/ocaml/*/site-lib/lablgtk2 -coqide opt" else "";
-  csdpPatch = if csdp != null then ''
-    substituteInPlace plugins/micromega/sos.ml --replace "; csdp" "; ${csdp}/bin/csdp"
-    substituteInPlace plugins/micromega/coq_micromega.ml --replace "System.is_in_system_path \"csdp\"" "true"
-  '' else "";
-  ocaml = ocamlPackages_4_02.ocaml;
-  findlib = ocamlPackages_4_02.findlib;
-  lablgtk = ocamlPackages_4_02.lablgtk;
-  camlp5 = ocamlPackages_4_02.camlp5_transitional;
-in
-
-stdenv.mkDerivation {
-  name = "coq-unstable-${version}";
-
-  inherit coq-version;
-  inherit ocaml camlp5 findlib;
-
-  src = fetchgit {
-    url = git://scm.gforge.inria.fr/coq/coq.git;
-    rev = "078598d029792a3d9a54fae9b9ac189b75bc3b06";
-    sha256 = "0sflrpp6x0ada0bjh67q1x65g88d179n3cawpwkp1pm4kw76g8x7";
-  };
-
-  nativeBuildInputs = [ pkgconfig ];
-  buildInputs = [ ocaml findlib camlp5 ncurses lablgtk ];
-
-  postPatch = ''
-    UNAME=$(type -tp uname)
-    RM=$(type -tp rm)
-    substituteInPlace configure --replace "/bin/uname" "$UNAME"
-    substituteInPlace tools/beautify-archive --replace "/bin/rm" "$RM"
-    substituteInPlace configure.ml --replace "\"Darwin\"; \"FreeBSD\"; \"OpenBSD\"" "\"Darwinx\"; \"FreeBSD\"; \"OpenBSD\""
-    ${csdpPatch}
-  '';
-
-  setupHook = writeText "setupHook.sh" ''
-    addCoqPath () {
-      if test -d "''$1/lib/coq/${coq-version}/user-contrib"; then
-        export COQPATH="''${COQPATH}''${COQPATH:+:}''$1/lib/coq/${coq-version}/user-contrib/"
-      fi
-    }
-
-    envHooks=(''${envHooks[@]} addCoqPath)
-  '';
-
-  preConfigure = ''
-    configureFlagsArray=(
-      -opt
-      ${ideFlags}
-    )
-  '';
-
-  prefixKey = "-prefix ";
-
-  buildFlags = "revision coq coqide";
-
-  meta = with stdenv.lib; {
-    description = "Coq proof assistant";
-    longDescription = ''
-      Coq is a formal proof management system.  It provides a formal language
-      to write mathematical definitions, executable algorithms and theorems
-      together with an environment for semi-interactive development of
-      machine-checked proofs.
-    '';
-    homepage = http://coq.inria.fr;
-    license = licenses.lgpl21;
-    branch = coq-version;
-    maintainers = with maintainers; [ roconnor thoughtpolice vbgl ];
-    platforms = platforms.unix;
-  };
-}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 069124667e0f..cda3d84fbacc 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -18792,7 +18792,6 @@ with pkgs;
   coq_8_7 = callPackage ../applications/science/logic/coq {
     version = "8.7.0";
   };
-  coq_HEAD = callPackage ../applications/science/logic/coq/HEAD.nix {};
 
   mkCoqPackages_8_4 = self: let callPackage = newScope self; in {
     inherit callPackage;