diff --git a/system/system-server.nix b/system/system-server.nix
index fb8d6b5..850a956 100644
--- a/system/system-server.nix
+++ b/system/system-server.nix
@@ -59,9 +59,7 @@
     plugins."io.containerd.grpc.v1.cri".registry.configs."100.125.181.75:5000".tls.insecure_skip_verify = true;
   };
 
-  {
-    nix.settings.trusted-users = [ "root" "builder_user" ];
-  }
+  nix.settings.trusted-users = [ "synchronous" "root" ];
 
   programs.nix-ld.enable = true;