diff --git a/nixos/modules/services/monitoring/riemann-tools.nix b/nixos/modules/services/monitoring/riemann-tools.nix
index 9c400a1e3e46..2b647b6b1ade 100644
--- a/nixos/modules/services/monitoring/riemann-tools.nix
+++ b/nixos/modules/services/monitoring/riemann-tools.nix
@@ -11,7 +11,7 @@ let
 
   healthLauncher = writeScriptBin "riemann-health" ''
     #!/bin/sh
-    exec ${pkgs.riemann-tools}/bin/riemann-health --host ${riemannHost}
+    exec ${pkgs.riemann-tools}/bin/riemann-health ${builtins.concatStringsSep " " cfg.extraArgs} --host ${riemannHost}
   '';
 
 
@@ -34,8 +34,16 @@ in {
           Address of the host riemann node. Defaults to localhost.
         '';
       };
+      extraArgs = mkOption {
+        type = types.listOf types.string;
+        default = [];
+        description = ''
+          A list of commandline-switches forwarded to a riemann-tool.
+          See for example `riemann-health --help` for available options.
+        '';
+        example = ["-p 5555" "--timeout=30" "--attribute=myattribute=42"];
+      };
     };
-
   };
 
   config = mkIf cfg.enableHealth {