--- foomatic-db-engine-3.0.2/foomatic-perl-data.c.orig	2007-08-03 15:59:26.820380517 +0700
+++ foomatic-db-engine-3.0.2/foomatic-perl-data.c	2007-08-03 16:09:08.886358877 +0700
@@ -2809,7 +2809,11 @@
   } else {
     printf("  'pcdriver' => undef,\n");
   }
-  printf("  'type' => '%s',\n", combo->driver_type);
+  if (combo->driver_type) {
+    printf("  'type' => '%s',\n", combo->driver_type);
+  } else {
+    printf("  'type' => 'undef',\n");
+  }
   if (combo->driver_comment) {
     printf("  'comment' => '%s',\n", combo->driver_comment);
   } else {