diff --git a/nixos/modules/services/networking/hans.nix b/nixos/modules/services/networking/hans.nix
index 1b54a822aae..4579154d78f 100644
--- a/nixos/modules/services/networking/hans.nix
+++ b/nixos/modules/services/networking/hans.nix
@@ -115,18 +115,10 @@ in
         description = "hans client - ${name}";
         after = [ "network.target" ];
         wantedBy = [ "multi-user.target" ];
-        preStart = ''
-          cat > /run/hans/${name}-script << EOF
-            #!/bin/sh
-            ${pkgs.hans}/bin/hans -f -u ${hansUser} ${cfg.extraConfig} -c ${cfg.server} ${optionalString (cfg.passwordFile != "") "-p $(cat \"${cfg.passwordFile}\")"} 
-          EOF
-          chmod 700 /run/hans/${name}-script
-        '';
-        script = "/run/hans/${name}-script";
+        script = "${pkgs.hans}/bin/hans -f -u ${hansUser} ${cfg.extraConfig} -c ${cfg.server} ${optionalString (cfg.passwordFile != "") "-p $(cat \"${cfg.passwordFile}\")"}";
         serviceConfig = {
           RestartSec = "30s";
           Restart = "always";
-          RuntimeDirectory = [ "hans" ];
         };
       };
     in
@@ -139,15 +131,7 @@ in
         description = "hans, ip over icmp server daemon";
         after = [ "network.target" ];
         wantedBy = [ "multi-user.target" ];
-        preStart = ''
-          cat > /run/hans/script << EOF
-            #!/bin/sh
-            ${pkgs.hans}/bin/hans -f -u ${hansUser} ${cfg.server.extraConfig} -s ${cfg.server.ip} ${optionalString cfg.server.systemPings "-r"} ${optionalString (cfg.passwordFile != "") "-p $(cat \"${cfg.passwordFile}\")"}
-          EOF
-          chmod 700 /run/hans/script
-        '';
-        script = "/run/hans/script";
-        serviceConfig.RuntimeDirectory = [ "hans" ];
+        script = "${pkgs.hans}/bin/hans -f -u ${hansUser} ${cfg.server.extraConfig} -s ${cfg.server.ip} ${optionalString cfg.server.systemPings "-r"} ${optionalString (cfg.passwordFile != "") "-p $(cat \"${cfg.passwordFile}\")"}";
       };
     };
 
diff --git a/nixos/modules/services/networking/iodine.nix b/nixos/modules/services/networking/iodine.nix
index 66569a7e912..709c36ee54f 100644
--- a/nixos/modules/services/networking/iodine.nix
+++ b/nixos/modules/services/networking/iodine.nix
@@ -120,18 +120,10 @@ in
         description = "iodine client - ${name}";
         after = [ "network.target" ];
         wantedBy = [ "multi-user.target" ];
-        preStart = ''
-          cat > /run/iodine/${name}-script << EOF
-            #!/bin/sh
-            ${pkgs.iodine}/bin/iodine -f -u ${iodinedUser} ${cfg.extraConfig} ${optionalString (cfg.passwordFile != "") "-P $(cat \"${cfg.passwordFile}\")"} ${cfg.relay} ${cfg.server}
-          EOF
-          chmod 700 /run/iodine/${name}-script
-        '';
-        script = "/run/iodine/${name}-script";
+        script = "${pkgs.iodine}/bin/iodine -f -u ${iodinedUser} ${cfg.extraConfig} ${optionalString (cfg.passwordFile != "") "-P $(cat \"${cfg.passwordFile}\")"} ${cfg.relay} ${cfg.server}";
         serviceConfig = {
           RestartSec = "30s";
           Restart = "always";
-          RuntimeDirectory = [ "iodine" ];
         };
       };
     in
@@ -144,15 +136,7 @@ in
         description = "iodine, ip over dns server daemon";
         after = [ "network.target" ];
         wantedBy = [ "multi-user.target" ];
-        preStart = ''
-          cat > /run/iodined/script << EOF
-            #!/bin/sh
-            ${pkgs.iodine}/bin/iodined -f -u ${iodinedUser} ${cfg.server.extraConfig} ${optionalString (cfg.passwordFile != "") "-P $(cat \"${cfg.passwordFile}\")"} ${cfg.server.ip} ${cfg.server.domain}
-          EOF
-          chmod 700 /run/iodined/script
-        '';
-        script = "/run/iodined/script";
-        serviceConfig.RuntimeDirectory = [ "iodined" ];
+        script = "${pkgs.iodine}/bin/iodined -f -u ${iodinedUser} ${cfg.server.extraConfig} ${optionalString (cfg.passwordFile != "") "-P $(cat \"${cfg.passwordFile}\")"} ${cfg.server.ip} ${cfg.server.domain}";
       };
     };