diff --git a/krebs/1systems/arcadeomat/config.nix b/krebs/1systems/arcadeomat/config.nix
index 8a2b0202e..cdeaae180 100644
--- a/krebs/1systems/arcadeomat/config.nix
+++ b/krebs/1systems/arcadeomat/config.nix
@@ -51,11 +51,6 @@ in
     extraGroups = [ "audio" "video" ];
     isNormalUser = true;
   };
-  boot.kernel.sysctl = {
-    # Enable IPv6 Privacy Extensions
-    "net.ipv6.conf.all.use_tempaddr" = 2;
-    "net.ipv6.conf.default.use_tempaddr" = 2;
-  };
 
 
   time.timeZone = "Europe/Berlin";
diff --git a/krebs/1systems/wolf/config.nix b/krebs/1systems/wolf/config.nix
index 25e7c5f06..12ce4db3e 100644
--- a/krebs/1systems/wolf/config.nix
+++ b/krebs/1systems/wolf/config.nix
@@ -52,12 +52,6 @@ in
   #####################
   krebs.build.host = config.krebs.hosts.wolf;
 
-  boot.kernel.sysctl = {
-    # Enable IPv6 Privacy Extensions
-    "net.ipv6.conf.all.use_tempaddr" = 2;
-    "net.ipv6.conf.default.use_tempaddr" = 2;
-  };
-
   boot.initrd.availableKernelModules = [
     "ata_piix" "uhci_hcd" "ehci_pci" "virtio_pci" "virtio_blk"
   ];