diff --git a/pkgs/development/compilers/llvm/3.9/clang/default.nix b/pkgs/development/compilers/llvm/3.9/clang/default.nix
index 91068227110..87216e424ca 100644
--- a/pkgs/development/compilers/llvm/3.9/clang/default.nix
+++ b/pkgs/development/compilers/llvm/3.9/clang/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetch, cmake, libxml2, libedit, llvm, version, clang-tools-extra_src, python }:
+{ stdenv, fetch, libxml2, libedit, llvm, version, clang-tools-extra_src, python, buildPackages }:
 
 let
   gcc = if stdenv.cc.isGNU then stdenv.cc.cc else stdenv.cc.cc.gcc;
@@ -13,7 +13,7 @@ let
       mv clang-tools-extra-* $sourceRoot/tools/extra
     '';
 
-    buildInputs = [ cmake libedit libxml2 llvm python ];
+    buildInputs = [ buildPackages.cmake libedit libxml2 llvm python ];
 
     cmakeFlags = [
       "-DCMAKE_CXX_FLAGS=-std=c++11"