diff --git a/pkgs/os-specific/linux/kernel/generic.nix b/pkgs/os-specific/linux/kernel/generic.nix
index 8ba677d6dfe..08611e44856 100644
--- a/pkgs/os-specific/linux/kernel/generic.nix
+++ b/pkgs/os-specific/linux/kernel/generic.nix
@@ -95,6 +95,8 @@ let
     '';
 
     installPhase = "mv .config $out";
+
+    enableParallelBuilding = true;
   };
 
   kernel = buildLinux {
diff --git a/pkgs/os-specific/linux/kernel/linux-testing.nix b/pkgs/os-specific/linux/kernel/linux-testing.nix
index bafac2fc58d..f44f3d32792 100644
--- a/pkgs/os-specific/linux/kernel/linux-testing.nix
+++ b/pkgs/os-specific/linux/kernel/linux-testing.nix
@@ -2,13 +2,13 @@
 
 import ./generic.nix (args // rec {
   # Reason to add:  RTL8192EE
-  version = "3.16-rc2";
-  modDirVersion = "3.16.0-rc2";
+  version = "3.16-rc3";
+  modDirVersion = "3.16.0-rc3";
   extraMeta.branch = "3.16";
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v3.x/testing/linux-${version}.tar.xz";
-    sha256 = "12bxf62qqsf471ak6rj4gbvvjsybsamgwj9p8bphr98dp14js27w";
+    sha256 = "17jgv1hnx2im68f8721x11yfg8mpas7lsxg0j00qxv2fc6km2glm";
   };
 
   features.iwlwifi = true;