diff --git a/man2/mount.2 b/man2/mount.2
index b8d74ffeb..68859aa67 100644
--- a/man2/mount.2
+++ b/man2/mount.2
@@ -172,6 +172,21 @@ should be the same values specified in the initial
 call;
 .I filesystemtype
 is ignored.
+
+The following
+.I mountflags 
+can be changed:
+.BR MS_RDONLY ,
+.BR MS_SYNCHRONOUS ,
+.BR MS_MANDLOCK ;
+before kernel 2.6.16, the following could also be changed:
+.BR MS_NOATIME 
+and
+.BR MS_NODIRATIME;
+and, additionally, before kernel 2.4, the following could also be changed:
+.BR MS_NOSUID ,
+.BR MS_NODEV ,
+.BR MS_NOEXEC .
 .TP
 .B MS_SYNCHRONOUS
 Make writes on this file system synchronous (as though