diff --git a/pkgs/applications/editors/emacs/elisp-packages/cedet/default.nix b/pkgs/applications/editors/emacs/elisp-packages/cedet/default.nix
deleted file mode 100644
index 31106654ae6c..000000000000
--- a/pkgs/applications/editors/emacs/elisp-packages/cedet/default.nix
+++ /dev/null
@@ -1,52 +0,0 @@
-{ lib, fetchurl, stdenv, emacs, python }:
-
-stdenv.mkDerivation rec {
-  pname = "cedet";
-  version = "1.1";
-
-  src = fetchurl {
-    url = "mirror://sourceforge/cedet/cedet-${version}.tar.gz";
-    sha256 = "0p2bwlpwwa019axvgj09xkxbr53j0pq23d46s4la9jfhl47nbh22";
-  };
-
-  buildInputs = [ emacs python ];
-
-  doCheck = true;
-  checkPhase = "make utest";
-
-  installPhase = ''
-    mkdir -p "$out/share/emacs/site-lisp"
-    cp -v */*.el */*/*.el */*.elc */*/*.elc "$out/share/emacs/site-lisp"
-    chmod a-x "$out/share/emacs/site-lisp/"*
-
-    mkdir -p "$out/share/info"
-    cp -v */*.info* */*/*.info* "$out/share/info"
-  '';
-
-  meta = {
-    description = "CEDET, a Collection of Emacs Development Environment Tools";
-
-    longDescription = ''
-      CEDET is a collection of tools written with the end goal of
-      creating an advanced development environment in Emacs.
-
-      Emacs already is a great environment for writing software, but
-      there are additional areas that need improvement.  Many new
-      ideas for integrated environments have been developed in newer
-      products, such as JBuilder, Eclipse, or KDevelop.  CEDET is a
-      project which brings together several different tools needed to
-      implement advanced features.
-
-      CEDET includes EIEIO (Enhanced Implementation of Emacs
-      Interpreted Objects), Semantic, SRecode, Speedbar, EDE (Emacs
-      Development Environment), and COGRE (COnnected GRaph Editor).
-    '';
-
-    license = lib.licenses.gpl2Plus;
-
-    homepage = "http://cedet.sourceforge.net/";
-
-    # Fails with `semantic-idle.el:42:1:Error: Invalid function: class-p`
-    broken = true;
-  };
-}
diff --git a/pkgs/applications/editors/emacs/elisp-packages/manual-packages.nix b/pkgs/applications/editors/emacs/elisp-packages/manual-packages.nix
index a27135032e18..f289d3d82efc 100644
--- a/pkgs/applications/editors/emacs/elisp-packages/manual-packages.nix
+++ b/pkgs/applications/editors/emacs/elisp-packages/manual-packages.nix
@@ -234,7 +234,6 @@
   youtube-dl = callPackage ./youtube-dl { };
 
   # From old emacsPackages (pre emacsPackagesNg)
-  cedet = callPackage ./cedet { };
   cedille = callPackage ./cedille { cedille = pkgs.cedille; };
   color-theme-solarized = callPackage ./color-theme-solarized { };
   session-management-for-emacs = callPackage ./session-management-for-emacs { };