diff --git a/pkgs/os-specific/linux/btrfsprogs/default.nix b/pkgs/os-specific/linux/btrfsprogs/default.nix
index c7a8bb58d033..1dc92c15d5d6 100644
--- a/pkgs/os-specific/linux/btrfsprogs/default.nix
+++ b/pkgs/os-specific/linux/btrfsprogs/default.nix
@@ -7,6 +7,9 @@ let
     zlib libuuid acl 
   ];
 in
+
+assert libuuid != null;
+
 rec {
   src = fetchurl {
     url = "http://www.kernel.org/pub/linux/kernel/people/mason/btrfs/btrfs-progs-${version}.tar.bz2";