diff --git a/lib/logstash/inputs/xmpp.rb b/lib/logstash/inputs/xmpp.rb
index 799142135..f1280d16d 100644
--- a/lib/logstash/inputs/xmpp.rb
+++ b/lib/logstash/inputs/xmpp.rb
@@ -65,6 +65,7 @@ class LogStash::Inputs::Xmpp < LogStash::Inputs::Base
         queue << e
       end
     end # @client.add_message_callback
+    sleep
   end # def run
 
 end # def class LogStash:Inputs::Xmpp