diff -up cups-1.3.7/scheduler/printers.c.str2836 cups-1.3.7/scheduler/printers.c
--- cups-1.3.7/scheduler/printers.c.str2836	2009-11-30 16:22:31.249609771 +0000
+++ cups-1.3.7/scheduler/printers.c	2009-11-30 16:22:50.396609092 +0000
@@ -3386,7 +3386,7 @@ add_printer_defaults(cupsd_printer_t *p)
                   1);
 
   if (!cupsGetOption("document-format", p->num_options, p->options))
-    ippAddString(CommonData, IPP_TAG_PRINTER, IPP_TAG_MIMETYPE,
+    ippAddString(p->attrs, IPP_TAG_PRINTER, IPP_TAG_MIMETYPE,
         	 "document-format-default", NULL, "application/octet-stream");
 
   if (!cupsGetOption("job-hold-until", p->num_options, p->options))