diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index df5ba4d7918..54d5849d3ed 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7544,7 +7544,7 @@ in
   llvm_37 = llvmPackages_37.llvm;
   llvm_35 = llvmPackages_35.llvm;
 
-  llvmPackages = recurseIntoAttrs llvmPackages_7;
+  llvmPackages = recurseIntoAttrs (if stdenv.isDarwin then llvmPackages_5 else llvmPackages_7);
 
   llvmPackages_35 = callPackage ../development/compilers/llvm/3.5 ({
     isl = isl_0_14;