diff --git a/en_US.ISO8859-1/books/fdp-primer/writing-style/chapter.xml b/en_US.ISO8859-1/books/fdp-primer/writing-style/chapter.xml
index b461547327..b45d550227 100644
--- a/en_US.ISO8859-1/books/fdp-primer/writing-style/chapter.xml
+++ b/en_US.ISO8859-1/books/fdp-primer/writing-style/chapter.xml
@@ -526,6 +526,21 @@ GB.  Hardware compression &hellip;</literallayout>
 	    <entry>Soft Updates</entry>
 	  </row>
 
+	  <row>
+	    <entry>stdin</entry>
+	    <entry><tag class="starttag">varname</tag>stdin<tag class="endtag">varname</tag></entry>
+	  </row>
+
+	  <row>
+	    <entry>stdout</entry>
+	    <entry><tag class="starttag">varname</tag>stdout<tag class="endtag">varname</tag></entry>
+	  </row>
+
+	  <row>
+	    <entry>stderr</entry>
+	    <entry><tag class="starttag">varname</tag>stderr<tag class="endtag">varname</tag></entry>
+	  </row>
+
 	  <row>
 	    <entry>Subversion</entry>