diff --git a/activejob/test/adapters/que.rb b/activejob/test/adapters/que.rb
index af77b0d4d1..bd4007b7e2 100644
--- a/activejob/test/adapters/que.rb
+++ b/activejob/test/adapters/que.rb
@@ -3,4 +3,4 @@
 require "support/que/inline"
 
 ActiveJob::Base.queue_adapter = :que
-Que.mode = :sync
+Que.run_synchronously = true