diff --git a/unshare.1 b/unshare.1
index 40028a2..9dfb3c8 100644
--- a/unshare.1
+++ b/unshare.1
@@ -13,24 +13,31 @@ indicated via options.
 \fB-m\fR
 Unshare the mount namespace, so that the calling process has a private
 copy of its namespace which is not shared with any other process.
+This flag has the same effect as the \fBclone(2) CLONE_NEWNS \fRflag.
 .TP
 \fB-u\fR
 Unshare the UTS IPC namespace, so that the calling process has a
 private copy of the UTS namespace which is not shared with any other
-process.
+process. This flag has the same effect as the \fBclone(2) CLONE_NEWUTS
+\fRflag.
 .TP
 \fB-i\fR
 Unshare the System V IPC namespace, so that the calling process has a
 private copy of the System V IPC namespace which is not shared with
-any other process.
+any other process. This flag has the same effect as the \fBclone(2)
+CLONE_NEWIPC \fRflag
 .TP
 \fB-n\fR
 Unshare the network namespace, so that the calling process is moved
 into a new network namespace which is not shared with any previously
-existing process.
+existing process. This flag has the same effect as the \fBclone(2)
+CLONE_NEWNET \fRflag.
 .TP
 \fB-p\fR
-Create the process in a new PID namespace.
+Create the process in a new PID namespace. This flag has the same
+effect as the \fBclone(2) CLONE_NEWPID \fRflag.
 .TP
 \fB-U\fR
 The process will have a distinct set of UIDs, GIDs and capabilities.
+.SH SEE ALSO
+clone(2), unshare(2)