diff --git a/lib/sidekiq/throttled/patches/basic_fetch.rb b/lib/sidekiq/throttled/patches/basic_fetch.rb
index 53ef9e90..5acb3971 100644
--- a/lib/sidekiq/throttled/patches/basic_fetch.rb
+++ b/lib/sidekiq/throttled/patches/basic_fetch.rb
@@ -32,7 +32,10 @@ def requeue_throttled(work)
         # @param [Array<String>] queues
         # @return [Array<String>]
         def queues_cmd
-          super - (Throttled.cooldown&.queues || [])
+          throttled_queues = Throttled.cooldown&.queues
+          return super unless throttled_queues&.size&.positive?
+
+          super - throttled_queues
         end
       end
     end