diff --git a/minijail0.1 b/minijail0.1
index cdc3083..e186fef 100644
--- a/minijail0.1
+++ b/minijail0.1
@@ -138,6 +138,10 @@
 \fB-V <file>\fR
 Enter the VFS namespace specified by \fIfile\fR.
 .TP
+\fB-w\fR
+Create and join a new anonymous session keyring.  See \fBkeyrings\fR(7) for more
+details.
+.TP
 \fB-y\fR
 Keep the current user's supplementary groups.
 .TP