diff --git a/libisoburn/libisoburn.h b/libisoburn/libisoburn.h
index 5f59fb9a..0c512d49 100644
--- a/libisoburn/libisoburn.h
+++ b/libisoburn/libisoburn.h
@@ -1558,8 +1558,8 @@ int isoburn_igopt_get_scdbackup_tag(struct isoburn_imgen_opts *o,
                     bit14= Only with System area type 0 = MBR
                           GRUB2 boot provisions:
                           @since 1.3.0
-                          Patch system area at byte 92 to 99 with 512-block
-                          address + 1 of the first boot image file.
+                          Patch system area at byte 0x1b0 to 0x1b7 with 
+                          (512-block address + 4) of the first boot image file.
                           Little-endian 8-byte.
                           Should be combined with options bit0.
                           Will not be in effect if options bit1 is set.
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index b29369c4..be98a74d 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2014.03.06.164332"
+#define Xorriso_timestamP "2014.03.14.134138"