diff --git a/doc/src/sgml/docguide.sgml b/doc/src/sgml/docguide.sgml
index 029c64580ae..057ecce6670 100644
--- a/doc/src/sgml/docguide.sgml
+++ b/doc/src/sgml/docguide.sgml
@@ -75,7 +75,7 @@
a complete O'Reilly book for your online reading pleasure. The
NewbieDoc Docbook Guide is very helpful for beginners.
- The
+ The
FreeBSD Documentation Project also uses DocBook and has some good
information, including a number of style guidelines that might be
worth considering.