diff --git a/doc/tclcurl.n b/doc/tclcurl.n
index e33a546..e8fad7a 100755
--- a/doc/tclcurl.n
+++ b/doc/tclcurl.n
@@ -1637,6 +1637,15 @@ Force SSLv2
 .TP
 .B sslv3
 Force SSLv3
+.TP
+.B tlsv1_0
+Force TLSv1.0
+.TP
+.B tlsv1_1
+Force TLSv1.1
+.TP
+.B tlsv1_2
+Force TLSv1.2
 .RE
 
 .TP