diff -up cups-1.3.4/scheduler/ipp.c.str2600 cups-1.3.4/scheduler/ipp.c
--- cups-1.3.4/scheduler/ipp.c.str2600	2007-11-20 12:24:33.000000000 +0000
+++ cups-1.3.4/scheduler/ipp.c	2007-11-20 12:24:35.000000000 +0000
@@ -1280,7 +1280,8 @@ add_job(cupsd_client_t  *con,		/* I - Cl
 
   cupsdLogMessage(CUPSD_LOG_DEBUG2, "add_job(%p[%d], %p(%s), %p(%s/%s))",
                   con, con->http.fd, printer, printer->name,
-		  filetype, filetype->super, filetype->type);
+		  filetype, filetype ? filetype->super : "?",
+		  filetype ? filetype->type : "?");
 
  /*
   * Check remote printing to non-shared printer...