diff --git a/fhem/www/pgm2/fhemweb.js b/fhem/www/pgm2/fhemweb.js
index f215498fd..48c6a2950 100644
--- a/fhem/www/pgm2/fhemweb.js
+++ b/fhem/www/pgm2/fhemweb.js
@@ -54,7 +54,7 @@ FW_jqueryReadyFn()
 {
   FW_docReady = true;
   FW_serverGenerated = $("body").attr("generated");
-  if($("body").attr("longpoll"))
+  if($("body").attr("longpoll") != "0")
     setTimeout("FW_longpoll()", 100);
 
   $("a").each(function() { FW_replaceLink(this); })