diff --git a/src/server/distrend.c b/src/server/distrend.c
--- a/src/server/distrend.c
+++ b/src/server/distrend.c
@@ -67,6 +67,7 @@ struct general_info {
   unsigned int total_frames_rendered; //
   unsigned int highest_jobnum;
   short int hibernate;
+  unsigned int timestamp;
 } general_info;
 
 
@@ -163,6 +164,7 @@ int start_data(struct distrenjob *head, 
     general_info.jobs_in_queue = 0;
     general_info.rendering_clients = 0;
     general_info.hibernate = 0;
+    general_info.timestamp = 0;
 
     // Create the stor directory
     // char *stor;
@@ -593,6 +595,7 @@ void importGeneralInfo()
   general_info.hibernate = 0;
   general_info.free_clients = 0;
   general_info.rendering_clients = 0;
+  general_info.timestamp = 0;
 
   xmlFreeDoc(doc);
 }
@@ -746,14 +749,19 @@ int updateJobListXML(struct distrenjob *
   char *tmp2;
   int counter;
 
+  // update timestamp
+  general_info.timestamp++;
+  if(general_info.timestamp > 65530)
+		  general_info.timestamp = 0;
+
   writer = xmlNewTextWriterFilename("job_list.xml", 0);
   xmlTextWriterStartDocument(writer, NULL, "utf-8", NULL);
 
   // create root element job_list
   xmlTextWriterStartElement(writer, (xmlChar*)"job_list");
 
-  _distren_asprintf(&tmp, "%d", general_info.jobs_in_queue);
-  xmlTextWriterWriteAttribute(writer, (xmlChar*)"amount", (xmlChar*)tmp);
+  _distren_asprintf(&tmp, "%d", general_info.timestamp);
+  xmlTextWriterWriteAttribute(writer, (xmlChar*)"timestamp", (xmlChar*)tmp);
 
   counter = 0;
   for(job = head->next; job; job = job->next)
@@ -957,6 +965,7 @@ int main(int argc, char *argv[])
   general_info.total_frames_rendered = 0;
   general_info.highest_jobnum = 0;
   general_info.hibernate = 0;
+  general_info.timestamp = 0;
 
   int command;
   jobnum_t jobnum;