diff --git a/hosts/epyc.nix b/hosts/epyc.nix
index 1c79bf2..8389142 100644
--- a/hosts/epyc.nix
+++ b/hosts/epyc.nix
@@ -24,6 +24,7 @@ in
   boot.kernelPackages = pkgs.linuxPackages_latest;
 
   # Open public access to our PostgreSQL.
+  services.postgresql.enable = true;
   services.postgresql.enableTCPIP = true;
   services.postgresql.authentication = ''
   host  hydra-nixos-org hydra_ro  ::/0  trust