diff --git a/pkgs/os-specific/linux/kernel-headers/default.nix b/pkgs/os-specific/linux/kernel-headers/default.nix
index a33d24fc847..da9f3009474 100644
--- a/pkgs/os-specific/linux/kernel-headers/default.nix
+++ b/pkgs/os-specific/linux/kernel-headers/default.nix
@@ -1,5 +1,7 @@
 { stdenv, kernel, perl }:
 
+assert (!(kernel.features.grsecurity or false));
+
 let
   baseBuildFlags = [ "INSTALL_HDR_PATH=$(out)" "headers_install" ];
 in stdenv.mkDerivation {