diff --git a/pkgs/development/compilers/llvm/3.5/clang.nix b/pkgs/development/compilers/llvm/3.5/clang.nix
index 42ca4ba70e4..d3ce8a4f9ff 100644
--- a/pkgs/development/compilers/llvm/3.5/clang.nix
+++ b/pkgs/development/compilers/llvm/3.5/clang.nix
@@ -50,5 +50,6 @@ in stdenv.mkDerivation {
     homepage    = http://llvm.org/;
     license     = stdenv.lib.licenses.bsd3;
     platforms   = stdenv.lib.platforms.all;
+    broken      = true;
   };
 }