diff --git a/modules/services/networking/portmap.nix b/modules/services/networking/portmap.nix
index e0164b162f55..4dc2277a9020 100644
--- a/modules/services/networking/portmap.nix
+++ b/modules/services/networking/portmap.nix
@@ -69,9 +69,9 @@ in
       { description = "ONC RPC portmap";
 
         startOn = "started network-interfaces";
-        stopOn = "";
+        stopOn = ""; # needed during shutdown
 
-        daemonType = "fork"; # needed during shutdown
+        daemonType = "fork";
 
         path = [ portmap pkgs.netcat ];