diff --git a/pkgs/development/libraries/libngspice/default.nix b/pkgs/development/libraries/libngspice/default.nix
index 5537bb0ca4b..c6e787eda61 100644
--- a/pkgs/development/libraries/libngspice/default.nix
+++ b/pkgs/development/libraries/libngspice/default.nix
@@ -37,6 +37,8 @@ stdenv.mkDerivation rec {
     "--enable-cider"
   ];
 
+  enableParallelBuilding = true;
+
   meta = with lib; {
     description = "The Next Generation Spice (Electronic Circuit Simulator)";
     homepage = "http://ngspice.sourceforge.net";