diff --git a/doc/bird.sgml b/doc/bird.sgml
index 0b671010..de8acb48 100644
--- a/doc/bird.sgml
+++ b/doc/bird.sgml
@@ -98,9 +98,9 @@ it is slightly modified linuxdoc dtd.  Anything in <descrip> tags is consi
 configuration primitives, <cf> is fragment of configuration within normal text, <m> is
 "meta" information within fragment of configuration -- something in config which is not keyword.
 
-<sect1>Installing bird
+<sect1>Installing BIRD
 
-<p>On unix system, installing bird should be as easy as:
+<p>On UNIX system, installing BIRD should be as easy as:
 
 <code>
         ./configure