diff --git a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog
index e4fd613..7f40072 100644
--- a/fs/ntfs/ChangeLog
+++ b/fs/ntfs/ChangeLog
@@ -90,7 +90,11 @@
 	  in the first buffer head instead of a driver global spin lock to
 	  improve scalability.
 	- Minor fix to error handling and error message display in
-	  fs/ntfs/aops.c::ntfs_prepare_nonresident_write(). 
+	  fs/ntfs/aops.c::ntfs_prepare_nonresident_write().
+	- Change the mount options {u,f,d}mask to always parse the number as
+	  an octal number to conform to how chmod(1) works, too.  Thanks to
+	  Giuseppe Bilotta and Horst von Brand for pointing out the errors of
+	  my ways.
 
 2.1.23 - Implement extension of resident files and make writing safe as well as
 	 many bug fixes, cleanups, and enhancements...
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index b2b3929..453d0d5 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -126,6 +126,14 @@
 		if (*v)							\
 			goto needs_val;					\
 	}
+#define NTFS_GETOPT_OCTAL(option, variable)				\
+	if (!strcmp(p, option)) {					\
+		if (!v || !*v)						\
+			goto needs_arg;					\
+		variable = simple_strtoul(ov = v, &v, 8);		\
+		if (*v)							\
+			goto needs_val;					\
+	}
 #define NTFS_GETOPT_BOOL(option, variable)				\
 	if (!strcmp(p, option)) {					\
 		BOOL val;						\
@@ -157,9 +165,9 @@
 			*v++ = 0;
 		NTFS_GETOPT("uid", uid)
 		else NTFS_GETOPT("gid", gid)
-		else NTFS_GETOPT("umask", fmask = dmask)
-		else NTFS_GETOPT("fmask", fmask)
-		else NTFS_GETOPT("dmask", dmask)
+		else NTFS_GETOPT_OCTAL("umask", fmask = dmask)
+		else NTFS_GETOPT_OCTAL("fmask", fmask)
+		else NTFS_GETOPT_OCTAL("dmask", dmask)
 		else NTFS_GETOPT("mft_zone_multiplier", mft_zone_multiplier)
 		else NTFS_GETOPT_WITH_DEFAULT("sloppy", sloppy, TRUE)
 		else NTFS_GETOPT_BOOL("show_sys_files", show_sys_files)