diff --git a/pkgs/os-specific/darwin/apple-source-releases/libunwind/default.nix b/pkgs/os-specific/darwin/apple-source-releases/libunwind/default.nix
index 9fed57ed64a4..81a45d99a86e 100644
--- a/pkgs/os-specific/darwin/apple-source-releases/libunwind/default.nix
+++ b/pkgs/os-specific/darwin/apple-source-releases/libunwind/default.nix
@@ -1,16 +1,15 @@
 { stdenv, appleDerivation, dyld, osx_private_sdk }:
 
 appleDerivation {
-  buildPhase = ":";
+  phases = [ "unpackPhase" "installPhase" ];
 
-  # install headers only
   installPhase = ''
     mkdir -p $out/lib
-    make install-data-am
+    cp -R include $out/include
   '';
 
   meta = with stdenv.lib; {
-    maintainers = with maintainers; [ copumpkin lnl7 ];
+    maintainers = with maintainers; [ copumpkin ];
     platforms   = platforms.darwin;
     license     = licenses.apsl20;
   };