diff --git a/lib/fluent/plugin/out_detect_exceptions.rb b/lib/fluent/plugin/out_detect_exceptions.rb
index cca85d1..98c4785 100644
--- a/lib/fluent/plugin/out_detect_exceptions.rb
+++ b/lib/fluent/plugin/out_detect_exceptions.rb
@@ -41,6 +41,10 @@ class DetectExceptionsOutput < Output
 
     Fluent::Plugin.register_output('detect_exceptions', self)
 
+    def multi_workers_ready?
+      true
+    end
+
     def configure(conf)
       super