diff --git a/kuser/kswitch.1 b/kuser/kswitch.1
index 60ee7694e..e8138e992 100644
--- a/kuser/kswitch.1
+++ b/kuser/kswitch.1
@@ -50,6 +50,7 @@ switch between default credential caches
 .Fl -principal= Ns Ar principal
 .Xc
 .Oc
+.Op Fl i | Fl -interactive
 .Op Fl -version
 .Op Fl -help
 .Sh DESCRIPTION
@@ -71,6 +72,11 @@ name of credential cache to switch to
 .Xc
 name of principal to switch to
 .It Xo
+.Fl i ,
+.Fl -interactive
+.Xc
+interactive switching between credentials.
+.It Xo
 .Fl -version
 .Xc
 print version