diff --git a/src/server/slavefuncs.c b/src/server/slavefuncs.c
--- a/src/server/slavefuncs.c
+++ b/src/server/slavefuncs.c
@@ -672,7 +672,8 @@ void _web_startframe(int slavekey, char 
 }
 
 /** @TODO: Needs to get xres, yres, outpuext */
-int _web_getwork(int slavekey, char *slavepass, int *jobnum, int *framenum, int *xres, int *yres, char *outputext){
+int _web_getwork(int slavekey, char *slavepass, int *jobnum, int *framenum, int *xres, int *yres, char **outputext)
+{
   char *url;
   _distren_asprintf(&url,"http://distren.org/slave/act.php?mode=getwork&slavekey=%d&slavepass=%s", slavekey, slavepass);
   struct _web_memorystruct data = _web_getrequest(url);
@@ -724,7 +725,7 @@ int _web_getwork(int slavekey, char *sla
       tmp = strtok (NULL, ",");
       if(tmp == NULL)
         return 0; // no work
-      outputext = tmp;
+      *outputext = strdup(tmp);
       if(DEBUG)
         fprintf(stderr,"GETWORK Debug output - Job: %d | Frame: %d | Xres: %d | Yres: %d | Outformat: %s\n", *jobnum, *framenum, *xres, *yres, outputext);