diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 1ef6f587762..f606f77e449 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2254,10 +2254,6 @@ rec {
     inherit fetchurl stdenv;
   };
 
-  kernelHeaders_2_6_20_7 = import ../os-specific/linux/kernel-headers/2.6.20.7.nix {
-    inherit fetchurl stdenv;
-  };
-
   kernelHeadersArm = import ../os-specific/linux/kernel-headers-cross {
     inherit fetchurl stdenv;
     cross = "arm-linux";