1 files changed, 2 insertions, 5 deletions
diff --git a/nixpkgs/pkgs/applications/science/electronics/openems/default.nix b/nixpkgs/pkgs/applications/science/electronics/openems/default.nix
index f7c8dd7467a3..64afe3222c2d 100644
--- a/nixpkgs/pkgs/applications/science/electronics/openems/default.nix
+++ b/nixpkgs/pkgs/applications/science/electronics/openems/default.nix
@@ -11,16 +11,15 @@
 , cmake
 , octave
 , gl2ps
+, mpi
 , withQcsxcad ? true
 , withMPI ? false
 , withHyp2mat ? true
 , qcsxcad ? null
-, openmpi ? null
 , hyp2mat ? null
 }:
 
 assert withQcsxcad -> qcsxcad != null;
-assert withMPI -> openmpi != null;
 assert withHyp2mat -> hyp2mat != null;
 
 stdenv.mkDerivation {
@@ -50,7 +49,7 @@ stdenv.mkDerivation {
     csxcad
     (octave.override { inherit hdf5; }) ]
     ++ lib.optionals withQcsxcad [ qcsxcad ]
-    ++ lib.optionals withMPI [ openmpi ]
+    ++ lib.optionals withMPI [ mpi ]
     ++ lib.optionals withHyp2mat [ hyp2mat ];
 
   postFixup = ''
@@ -63,8 +62,6 @@ stdenv.mkDerivation {
       -o $out/share/openEMS/matlab/h5readatt_octave.oct
   '';
 
-  enableParallelBuilding = true;
-
   meta = with lib; {
     description = "Open Source Electromagnetic Field Solver";
     homepage = "http://openems.de/index.php/Main_Page.html";