diff --git a/doc/arm/logging-categories.xml b/doc/arm/logging-categories.xml
index 77e402f329..04c000b9fe 100644
--- a/doc/arm/logging-categories.xml
+++ b/doc/arm/logging-categories.xml
@@ -110,6 +110,16 @@
 	  </para>
 	</entry>
       </row>
+      <row rowsep="0">
+	<entry colname="1">
+	  <para><command>dnssec</command></para>
+	</entry>
+	<entry colname="2">
+	  <para>
+	    The "dnstap" DNS traffic capture system.
+	  </para>
+	</entry>
+      </row>
       <row rowsep="0">
 	<entry colname="1">
 	  <para><command>edns-disabled</command></para>