diff --git a/ChangeLog b/ChangeLog
index 49442fb7b..521248bbc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2012-05-30  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/commands/gptsync.c (grub_cmd_gptsync): Propagate the
+	relaxation of protective MBR requirements.
+
 2012-05-29  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* configure.ac: Add condition for COND_HOST_XNU.
diff --git a/grub-core/commands/gptsync.c b/grub-core/commands/gptsync.c
index fbfcea05c..1a203dc59 100644
--- a/grub-core/commands/gptsync.c
+++ b/grub-core/commands/gptsync.c
@@ -67,6 +67,7 @@ grub_cmd_gptsync (grub_command_t cmd __attribute__ ((unused)),
   struct grub_partition *partition;
   grub_disk_addr_t first_sector;
   int numactive = 0;
+  int i;
 
   if (argc < 1)
     return grub_error (GRUB_ERR_BAD_ARGUMENT, "device name required");
@@ -107,13 +108,15 @@ grub_cmd_gptsync (grub_command_t cmd __attribute__ ((unused)),
     }
 
   /* Make sure the MBR is a protective MBR and not a normal MBR.  */
-  if (mbr.entries[0].type != GRUB_PC_PARTITION_TYPE_GPT_DISK)
+  for (i = 0; i < 4; i++)
+    if (mbr.entries[i].type == GRUB_PC_PARTITION_TYPE_GPT_DISK)
+      break;
+  if (i == 4)
     {
       grub_device_close (dev);
       return grub_error (GRUB_ERR_BAD_PART_TABLE, "no GPT partition map found");
     }
 
-  int i;
   first_sector = dev->disk->total_sectors;
   for (i = 1; i < argc; i++)
     {