diff --git a/lib/sidekiq/api.rb b/lib/sidekiq/api.rb
index 1394d4e14..32c67da58 100644
--- a/lib/sidekiq/api.rb
+++ b/lib/sidekiq/api.rb
@@ -113,6 +113,7 @@ def fetch_stats_slow!
 
       @stats[:workers_size] = workers_size
       @stats[:enqueued] = enqueued
+      @stats
     end
 
     def fetch_stats!