diff --git a/hosts/FredOS-Mediaserver.nix b/hosts/FredOS-Mediaserver.nix
index ed2cba0..0fc0922 100644
--- a/hosts/FredOS-Mediaserver.nix
+++ b/hosts/FredOS-Mediaserver.nix
@@ -33,6 +33,10 @@
     # Basic networking
     networking.useDHCP = lib.mkDefault true;
 
+    # Allow fred to act as a remote Nix builder (trusted users can import
+    # unsigned store paths sent by the build client).
+    nix.settings.trusted-users = [ "root" "fred" ];
+
     # Open firewall for SSH
     networking.firewall.allowedTCPPorts = [ 22 11434 ];
     services.openssh = {