diff --git a/pkgs/development/compilers/llvm/default.nix b/pkgs/development/compilers/llvm/default.nix
index c8d90dfb922c..8a6e2e18554c 100644
--- a/pkgs/development/compilers/llvm/default.nix
+++ b/pkgs/development/compilers/llvm/default.nix
@@ -29,6 +29,8 @@ stdenv.mkDerivation ({
               else if (stdenv.system == "x86_64-linux") then "x86_64-unknown-linux-gnu"
               else throw "System not supported";
   in {
+    name = "clang-2.7";
+
     srcClang = fetchsvn {
       url = http://llvm.org/svn/llvm-project/cfe/tags/RELEASE_27;
       rev = 105900;