diff --git a/hosts/cuallaidh/default.nix b/hosts/cuallaidh/default.nix
index 9efb72a..88e0bc1 100644
--- a/hosts/cuallaidh/default.nix
+++ b/hosts/cuallaidh/default.nix
@@ -53,8 +53,9 @@
 
   security.acme = {
     acceptTerms = true;
-    certs = {"git.mcwhirter.io" = {email = "craige@mcwhirter.io";};};
-    certs = {"source.mcwhirter.io" = {email = "craige@mcwhirter.io";};};
+    defaults.email = "acme@mcwhirter.io";
+    certs = {"git.mcwhirter.io" = {};};
+    certs = {"source.mcwhirter.io" = {};};
   };
 
   system.stateVersion = "19.03"; # The version of NixOS originally installed