diff --git a/flake.nix b/flake.nix
index c1b1bcb17..ac991cf5d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -21,17 +21,21 @@
         in
         {
           options.networking.stevenBlackHosts = {
-            enable = mkEnableOption "Use Steven Black's hosts file as extra hosts.";
-            blockFakenews = mkEnableOption "Additionally block fakenews hosts.";
-            blockGambling = mkEnableOption "Additionally block gambling hosts.";
-            blockPorn = mkEnableOption "Additionally block porn hosts.";
-            blockSocial = mkEnableOption "Additionally block social hosts.";
+            enable = mkEnableOption "Steven Black's hosts file";
+            enableIPv6 = mkEnableOption "IPv6 rules" // {
+              default = config.networking.enableIPv6;
+            };
+            blockFakenews = mkEnableOption "fakenews hosts entries";
+            blockGambling = mkEnableOption "gambling hosts entries";
+            blockPorn = mkEnableOption "porn hosts entries";
+            blockSocial = mkEnableOption "social hosts entries";
           };
           config = mkIf cfg.enable {
             networking.extraHosts =
-              builtins.readFile (
-                "${self}/" + (if alternatesList != [] then alternatesPath else "") + "hosts"
-              );
+              let
+                orig = builtins.readFile ("${self}/" + (if alternatesList != [] then alternatesPath else "") + "hosts");
+                ipv6 = builtins.replaceStrings [ "0.0.0.0" ] [ "::" ] orig;
+              in orig + (optionalString cfg.enableIPv6 ("\n" + ipv6));
           };
         };
 
diff --git a/readme_template.md b/readme_template.md
index 223bae865..b9e134fce 100644
--- a/readme_template.md
+++ b/readme_template.md
@@ -405,6 +405,7 @@ The hosts extensions are also available with the following options:
 ```nix
 {
   networking.stevenBlackHosts = {
+    enableIPv6 = true;
     blockFakenews = true;
     blockGambling = true;
     blockPorn = true;
@@ -413,6 +414,8 @@ The hosts extensions are also available with the following options:
 }
 ```
 
+IPv6 rules are enabled by default when `networking.enableIPv6` is set to `true`.
+
 ## Updating hosts file on Windows
 
 (NOTE: See also some third-party Hosts managers, listed below.)