diff --git a/nixos/modules/services/networking/murmur.nix b/nixos/modules/services/networking/murmur.nix
index ef2bd0b28b6d..c67b4ac47390 100644
--- a/nixos/modules/services/networking/murmur.nix
+++ b/nixos/modules/services/networking/murmur.nix
@@ -358,6 +358,7 @@ in
         ProtectKernelLogs = true;
         ProtectKernelModules = true;
         ProtectKernelTunables = true;
+        ProtectProc = "invisible";
         ProtectSystem = "strict";
         ReadWritePaths = [
           cfg.stateDir