diff --git a/docs/man/man1/glzip.1.adoc b/docs/man/man1/glzip.1.adoc
index 7b2ede8..12a58b2 100644
--- a/docs/man/man1/glzip.1.adoc
+++ b/docs/man/man1/glzip.1.adoc
@@ -5,8 +5,9 @@
 = glzip(1)
 // Specify in UTC.
 :docdate: 2024-08-01
+:revnumber: 0.3.5
 :doctype: manpage
-:mansource: glzip 0.3.5
+:mansource: glzip {revnumber}
 :manmanual: General Commands Manual
 :lzip-spec-url: https://www.nongnu.org/lzip/manual/lzip_manual.html#File-format