diff --git a/dosfstools-mdraid-partition.patch b/dosfstools-mdraid-partition.patch
index e1462f8..b2a4ec5 100644
--- a/dosfstools-mdraid-partition.patch
+++ b/dosfstools-mdraid-partition.patch
@@ -1,8 +1,8 @@
 Index: src/mkdosfs.c
 ===================================================================
---- src.orig/mkdosfs.c
+--- src/mkdosfs.c.orig
 +++ src/mkdosfs.c
-@@ -1763,10 +1763,10 @@ main (int argc, char **argv)
+@@ -1763,10 +1763,11 @@ main (int argc, char **argv)
       * this is a MO disk I introduce a -I (ignore) switch.  -Joey
       */
      if (!ignore_full_disk && (
@@ -10,10 +10,11 @@ Index: src/mkdosfs.c
 -	(statbuf.st_rdev & 0xff0f) == 0x0800 || /* sd */
 -	(statbuf.st_rdev & 0xff3f) == 0x0d00 || /* xd */
 -	(statbuf.st_rdev & 0xff3f) == 0x1600 )  /* hdc, hdd */
-+	(statbuf.st_rdev & 0xfff3f) == 0x00300 || /* hda, hdb */
-+	(statbuf.st_rdev & 0xfff0f) == 0x00800 || /* sd */
-+	(statbuf.st_rdev & 0xfff3f) == 0x00d00 || /* xd */
-+	(statbuf.st_rdev & 0xfff3f) == 0x01600 )  /* hdc, hdd */
++	(statbuf.st_rdev & 0xfff3f) == 0x00300 || 
++        (major(statbuf.st_rdev) == 3  && (minor(statbuf.st_rdev) & 63) == 0) || /* hda, hdb */
++	(major(statbuf.st_rdev) == 8  && (minor(statbuf.st_rdev) & 15) == 0) || /* sd */
++	(major(statbuf.st_rdev) == 13 && (minor(statbuf.st_rdev) & 63) == 0) || /* xd */
++	(major(statbuf.st_rdev) == 22 && (minor(statbuf.st_rdev) & 63) == 0))   /* hdc, hdd */
  	)
        die ("Device partition expected, not making filesystem on entire device '%s' (use -I to override)");