diff --git a/pkgs/by-name/mu/mumps/package.nix b/pkgs/by-name/mu/mumps/package.nix
index 7d0e3e154cb4..41894f9dcd0f 100644
--- a/pkgs/by-name/mu/mumps/package.nix
+++ b/pkgs/by-name/mu/mumps/package.nix
@@ -42,6 +42,8 @@ stdenv.mkDerivation (finalAttrs: {
     cp Make.inc/Makefile.debian.SEQ ./Makefile.inc
   '';
 
+  enableParallelBuilding = true;
+
   makeFlags =
     lib.optionals stdenv.hostPlatform.isDarwin [
       "SONAME="