diff --git a/hosts/common.nix b/hosts/common.nix
index 90c6aa1..6f9d91a 100644
--- a/hosts/common.nix
+++ b/hosts/common.nix
@@ -49,6 +49,7 @@
       max-free = 1000000000;
       fallback = true;
       allowed-users = [ "@wheel" ];
+      trusted-users = [ "@wheel" ];
       auto-optimise-store = true;
       substituters = [
         "http://odyssey.mesh.vimium.net"