diff --git a/pkgs/development/libraries/libunwind/default.nix b/pkgs/development/libraries/libunwind/default.nix
index aeed6975bda..e28038c15da 100644
--- a/pkgs/development/libraries/libunwind/default.nix
+++ b/pkgs/development/libraries/libunwind/default.nix
@@ -1,4 +1,4 @@
-{stdenv, fetchurl}:
+{stdenv, fetchurl, xz}:
 
 stdenv.mkDerivation rec {
   name = "libunwind-1.1";
@@ -7,7 +7,9 @@ stdenv.mkDerivation rec {
     url = "mirror://savannah/libunwind/${name}.tar.gz";
     sha256 = "16nhx2pahh9d62mvszc88q226q5lwjankij276fxwrm8wb50zzlx";
   };
-  
+
+  buildInputs = [ xz ];
+
   NIX_CFLAGS_COMPILE = if stdenv.system == "x86_64-linux" then "-fPIC" else "";
   preInstall = ''
     mkdir -p "$out/lib"