diff --git a/nixos/modules/services/mail/postfix-tlspol.nix b/nixos/modules/services/mail/postfix-tlspol.nix
index f49a17991842..8d267d04d52e 100644
--- a/nixos/modules/services/mail/postfix-tlspol.nix
+++ b/nixos/modules/services/mail/postfix-tlspol.nix
@@ -244,8 +244,6 @@ in
             "noroot"
             "noroot-locked"
           ];
-          RuntimeDirectory = "postfix-tlspol";
-          RuntimeDirectoryMode = "1750";
           WorkingDirectory = "/var/cache/postfix-tlspol";
           UMask = "0077";
         };