diff --git a/mastodon.nix b/mastodon.nix
index 7856fbc..992d591 100644
--- a/mastodon.nix
+++ b/mastodon.nix
@@ -170,8 +170,7 @@ in {
     };
 
     sidekiqProcesses = {
-      all = { jobClasses = [ ]; threads = null; };
-      a = { jobClasses = [ "mailers" "pull" ]; threads = null; };
+      a = { jobClasses = [ "mailers" "pull" "scheduler" ]; threads = null; };
       b = { jobClasses = [ "default" "push" "ingress" ]; threads = null; };
       c = { jobClasses = [ "default" "ingress" "push" ]; threads = null; };
       d = { jobClasses = [ "push" "default" "ingress" ]; threads = null; };