diff --git a/pkgs/development/interpreters/octave/default.nix b/pkgs/development/interpreters/octave/default.nix
index 7545e80fd117..dc3d700dc8e1 100644
--- a/pkgs/development/interpreters/octave/default.nix
+++ b/pkgs/development/interpreters/octave/default.nix
@@ -31,9 +31,7 @@ stdenv.mkDerivation rec {
   # there is a mysterious sh: command not found
   doCheck = false;
 
-  /* The build failed with a missing libranlib.la in hydra,
-     but worked on my computer. I think they have concurrency problems */
-  enableParallelBuilding = false;
+  enableParallelBuilding = true;
 
   configureFlags = [ "--enable-readline" "--enable-dl" ];
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 71d2c6434506..18d252fa49c1 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4380,7 +4380,6 @@ let
     glpk = null;
     suitesparse = null;
     jdk = null;
-    gnuplot = null;
   };
   octaveFull = (lowPrio (callPackage ../development/interpreters/octave {
     fltk = fltk13;