diff --git a/grub2-secureboot-chainloader.patch b/grub2-secureboot-chainloader.patch
index 9d1c853..e1db93d 100644
--- a/grub2-secureboot-chainloader.patch
+++ b/grub2-secureboot-chainloader.patch
@@ -406,7 +406,7 @@ Index: grub-2.00/grub-core/loader/efi/chainloader.c
 +      goto error_exit;
 +    }
 +
-+  buffer_aligned = (char *)ALIGN_DOWN ((grub_addr_t)buffer, section_alignment);
++  buffer_aligned = (char *)ALIGN_UP ((grub_addr_t)buffer, section_alignment);
 +
 +  grub_memcpy (buffer_aligned, data, context.size_of_headers);
 +
diff --git a/grub2.changes b/grub2.changes
index 9cccc0e..d0d71b6 100644
--- a/grub2.changes
+++ b/grub2.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Apr  3 06:55:52 UTC 2013 - mchang@suse.com
+
+- refresh grub2-secureboot-chainloader.patch: Fix wrongly aligned
+  buffer address (bnc#811608) 
+
 -------------------------------------------------------------------
 Thu Mar 28 02:57:47 UTC 2013 - mchang@suse.com