diff --git a/modules/clan/prometheus/default.nix b/modules/clan/prometheus/default.nix
index 8da0e81..2bbd77b 100644
--- a/modules/clan/prometheus/default.nix
+++ b/modules/clan/prometheus/default.nix
@@ -18,11 +18,18 @@
             default = "1m";
             description = "How often to scrape targets. Default is 1 minutes";
           };
-          extraRules = lib.mkOption {
+          extra_rules = lib.mkOption {
             type = with lib.types; listOf attrs;
             default = [ ];
             description = "Additional rules for Prometheus";
           };
+          default_receiver = lib.mkOption {
+            type = with lib.types; attrs;
+            default = {
+              name = "default";
+            };
+            description = "Definition of a default receiver, default is doing nothing";
+          };
         };
       };