diff --git a/utils/isohybrid.c b/utils/isohybrid.c

index 09f4520..954b5ed 100644

--- a/utils/isohybrid.c

+++ b/utils/isohybrid.c

@@ -653,12 +653,10 @@ initialise_mbr(uint8_t *mbr)

           continue;

         }

-        if (i == 1)

-            mbr[0] = 0x80;

-

         if (i == part_data)

         {

             chs = ofs2chs(offset);

+            mbr[0] = 0x80;

             mbr[1] = chs >> 8;

             mbr[2] = chs >> 16;

             mbr[3] = chs >> 24;

@@ -945,7 +943,7 @@ main(int argc, char *argv[])

     }

     if (!(mode & (MODE_MBR | MODE_GPT))) {

-        mode |= (mode & EFI) ? MODE_GPT : MODE_MBR;

+        mode |= MODE_MBR;

     }

     if ((mode & EFI) && !offset) type = 0;