diff --git a/pkgs/stdenv/darwin/default.nix b/pkgs/stdenv/darwin/default.nix
index f73fca48b7a..874b26ba89e 100644
--- a/pkgs/stdenv/darwin/default.nix
+++ b/pkgs/stdenv/darwin/default.nix
@@ -165,7 +165,7 @@ in rec {
             ln -s ${bootstrapTools}/include/c++      $out/include/c++
           '';
           linkCxxAbi = false;
-          setupHook = ../../development/compilers/llvm/3.9/libc++/setup-hook.sh;
+          setupHook = ../../development/compilers/llvm/7/libc++/setup-hook.sh;
         };
 
         libcxxabi = stdenv.mkDerivation {