diff --git a/nixos/modules/tasks/network-interfaces.nix b/nixos/modules/tasks/network-interfaces.nix
index e5bd5775368..53c54c2e398 100644
--- a/nixos/modules/tasks/network-interfaces.nix
+++ b/nixos/modules/tasks/network-interfaces.nix
@@ -1062,7 +1062,6 @@ in
       ];
 
     boot.kernelModules = [ ]
-      ++ optional cfg.enableIPv6 "ipv6"
       ++ optional hasVirtuals "tun"
       ++ optional hasSits "sit"
       ++ optional hasBonds "bonding";
diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index 8bd5d021204..94558b890de 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -132,6 +132,7 @@ let
       IP_MROUTE_MULTIPLE_TABLES   = yes;
       IP_MULTICAST                = yes;
       IP_MULTIPLE_TABLES          = yes;
+      IPV6                        = yes;
       IPV6_ROUTER_PREF            = yes;
       IPV6_ROUTE_INFO             = yes;
       IPV6_OPTIMISTIC_DAD         = yes;