diff --git a/modules/services/networking/portmap.nix b/modules/services/networking/portmap.nix
index cde4bb6a9553..e0164b162f55 100644
--- a/modules/services/networking/portmap.nix
+++ b/modules/services/networking/portmap.nix
@@ -69,7 +69,7 @@ in
       { description = "ONC RPC portmap";
 
         startOn = "started network-interfaces";
-        stopOn = "never";
+        stopOn = "";
 
         daemonType = "fork"; # needed during shutdown
 
diff --git a/modules/tasks/filesystems/nfs.nix b/modules/tasks/filesystems/nfs.nix
index c41eb02f398a..2a57ce6ba9fb 100644
--- a/modules/tasks/filesystems/nfs.nix
+++ b/modules/tasks/filesystems/nfs.nix
@@ -45,7 +45,7 @@ in
 
         path = [ pkgs.nfsUtils pkgs.sysvtools pkgs.utillinux ];
 
-        stopOn = "never"; # needed during shutdown
+        stopOn = ""; # needed during shutdown
 
         preStart =
           ''
diff --git a/modules/testing/test-instrumentation.nix b/modules/testing/test-instrumentation.nix
index 26ea31802fed..122ba84254c9 100644
--- a/modules/testing/test-instrumentation.nix
+++ b/modules/testing/test-instrumentation.nix
@@ -29,7 +29,7 @@ in
 
     jobs.backdoor =
       { startOn = "startup";
-        stopOn = "never";
+        stopOn = "";
 
         script =
           ''