diff --git a/cmarkdown.1 b/cmarkdown.1
index 066351e..b2d0192 100644
--- a/cmarkdown.1
+++ b/cmarkdown.1
@@ -3,7 +3,10 @@
 cmarkdown \- Markdown interpreter in C
 .SH SYNOPSIS
 .B cmarkdown
+.RB [ \-h ]
 .RB [ \-v ]
+.RB [ \-n ]
+.RB [ file ]
 .SH DESCRIPTION
 cmarkdown is a simple interpreter for the markdown syntax.
 .SH OPTIONS