diff --git a/pkgs/development/libraries/libclc/default.nix b/pkgs/development/libraries/libclc/default.nix
index 4cea2df7816..9ddf1d4f157 100644
--- a/pkgs/development/libraries/libclc/default.nix
+++ b/pkgs/development/libraries/libclc/default.nix
@@ -28,6 +28,8 @@ stdenv.mkDerivation {
     ${python.interpreter} ./configure.py --prefix=$out
   '';
 
+  enableParallelBuilding = true;
+
   meta = with stdenv.lib; {
     homepage = http://libclc.llvm.org/;
     description = "Implementation of the library requirements of the OpenCL C programming language";