diff --git a/coreutils-6.10-md5sha1sum.patch b/coreutils-6.10-md5sha1sum.patch
index 09ed0a1..c97eeaa 100644
--- a/coreutils-6.10-md5sha1sum.patch
+++ b/coreutils-6.10-md5sha1sum.patch
@@ -11,6 +11,18 @@ diff -urNp coreutils-6.10-orig/src/md5sum.c coreutils-6.10/src/md5sum.c
    *file_name = s;
  
    /* Find end of filename. The BSD 'md5' and 'sha1' commands do not escape
+diff -urNp coreutils-6.10-orig/src/md5sum.c coreutils-6.10/src/md5sum.c
+--- coreutils-6.10-orig/src/md5sum.c	2008-04-18 17:40:03.000000000 +0200
++++ coreutils-6.10/src/md5sum.c	2008-04-18 17:48:05.000000000 +0200
+@@ -346,6 +346,8 @@ split_3 (char *s, size_t s_len,
+ static bool
+ hex_digits (unsigned char const *s)
+ {
++  if (!*s)
++    return false;
+   while (*s)
+     {
+       if (!isxdigit (*s))
 diff -urNp coreutils-6.10-orig/tests/misc/sha1sum coreutils-6.10/tests/misc/sha1sum
 --- coreutils-6.10-orig/tests/misc/sha1sum	2007-12-13 00:14:28.000000000 +0100
 +++ coreutils-6.10/tests/misc/sha1sum	2008-04-15 21:05:43.000000000 +0200
diff --git a/coreutils.spec b/coreutils.spec
index 9fac389..7852103 100644
--- a/coreutils.spec
+++ b/coreutils.spec
@@ -1,7 +1,7 @@
 Summary: The GNU core utilities: a set of tools commonly used in shell scripts
 Name:    coreutils
 Version: 6.10
-Release: 20%{?dist}
+Release: 21%{?dist}
 License: GPLv3+
 Group:   System Environment/Base
 Url:     http://www.gnu.org/software/coreutils/
@@ -314,6 +314,10 @@ fi
 /sbin/runuser
 
 %changelog
+* Fri Apr 18 2008 Ondrej Vasik <ovasik@redhat.com> - 6.10-21
+- fix wrong checksum line handling in sha1sum -c 
+  command(#439531)
+
 * Tue Apr 15 2008 Ondrej Vasik <ovasik@redhat.com> - 6.10-20
 - fix possible segfault in sha1sum/md5sum command