From 21cd86f2d9449ea2e969900bbc0324bbcad380fa Mon Sep 17 00:00:00 2001
From: "William A. Kennington III" <william@wkennington.com>
Date: Wed, 25 Mar 2015 15:20:23 -0700
Subject: [PATCH] makeInitrd: Make prepend optional

---
 pkgs/top-level/all-packages.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index c77593e027a..9dba1eb31cc 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -396,7 +396,7 @@ let
     inherit lib;
   };
 
-  makeInitrd = { contents, compressor ? "gzip -9n", prepend }:
+  makeInitrd = { contents, compressor ? "gzip -9n", prepend ? [ ] }:
     import ../build-support/kernel/make-initrd.nix {
       inherit stdenv perl perlArchiveCpio cpio contents ubootChooser compressor prepend;
     };