diff --git a/doc/man/asn1c.1 b/doc/man/asn1c.1
index f6b6268..93d47c9 100644
--- a/doc/man/asn1c.1
+++ b/doc/man/asn1c.1
@@ -78,6 +78,11 @@
 .RE
 .TP
 .B \-Wdebug\-lexer
+Enable lexer debugging during the ASN.1 lexing stage.
+.RS
+.RE
+.TP
+.B \-Wdebug\-parser
 Enable lexer debugging during the ASN.1 parsing stage.
 .RS
 .RE