diff --git a/pkgs/development/compilers/llvm/3.5/lldb.nix b/pkgs/development/compilers/llvm/3.5/lldb.nix
index 9a25401a874..92ba4108a4d 100644
--- a/pkgs/development/compilers/llvm/3.5/lldb.nix
+++ b/pkgs/development/compilers/llvm/3.5/lldb.nix
@@ -40,5 +40,6 @@ stdenv.mkDerivation {
     license     = stdenv.lib.licenses.bsd3;
     maintainers = [ stdenv.lib.maintainers.shlevy ];
     platforms   = stdenv.lib.platforms.all;
+    broken = true;
   };
 }