diff --git a/nixos/modules/services/databases/riak.nix b/nixos/modules/services/databases/riak.nix
index d592d2e8ffdd..e0ebf164aef0 100644
--- a/nixos/modules/services/databases/riak.nix
+++ b/nixos/modules/services/databases/riak.nix
@@ -70,6 +70,14 @@ in
         '';
       };
 
+      extraAdvancedConfig = mkOption {
+        type = types.lines;
+        default = "";
+        description = ''
+          Additional text to be appended to <filename>advanced.config</filename>.
+        '';
+      };
+
     };
 
   };
@@ -90,6 +98,10 @@ in
       ${cfg.extraConfig}
     '';
 
+    environment.etc."riak/advanced.config".text = ''
+      ${cfg.extraAdvancedConfig}
+    '';
+
     users.extraUsers.riak = {
       name = "riak";
       uid = config.ids.uids.riak;