diff --git a/pkgs/development/compilers/llvm/3.4/llvm.nix b/pkgs/development/compilers/llvm/3.4/llvm.nix
index d93bd4aba19..7f58abea1fa 100644
--- a/pkgs/development/compilers/llvm/3.4/llvm.nix
+++ b/pkgs/development/compilers/llvm/3.4/llvm.nix
@@ -26,7 +26,7 @@ in stdenv.mkDerivation rec {
     mv compiler-rt-${version} $sourceRoot/projects/compiler-rt
   '';
 
-  buildInputs = [ perl groff cmake libxml2 python libffi ncurses ] ++ stdenv.lib.optional stdenv.isLinux valgrind;
+  buildInputs = [ perl groff cmake libxml2 python libffi ] ++ stdenv.lib.optional stdenv.isLinux valgrind;
 
   propagatedBuildInputs = [ ncurses zlib ];