diff --git a/pkgs/os-specific/linux/kexec-tools/default.nix b/pkgs/os-specific/linux/kexec-tools/default.nix
index 22ba985fecce..15d26cd7e016 100644
--- a/pkgs/os-specific/linux/kexec-tools/default.nix
+++ b/pkgs/os-specific/linux/kexec-tools/default.nix
@@ -29,6 +29,8 @@ stdenv.mkDerivation rec {
   depsBuildBuild = [ buildPackages.stdenv.cc ];
   buildInputs = [ zlib ];
 
+  enableParallelBuilding = true;
+
   meta = with lib; {
     homepage = "http://horms.net/projects/kexec/kexec-tools";
     description = "Tools related to the kexec Linux feature";