diff --git a/docs/traffic_shaping.xml b/docs/traffic_shaping.xml
index 9e02ba3c6..44af6dbc2 100644
--- a/docs/traffic_shaping.xml
+++ b/docs/traffic_shaping.xml
@@ -808,9 +808,9 @@ ppp0           6000kbit         500kbit</programlisting>
             <listitem>
               <para>fq_codel[=(<replaceable>codeloption</replaceable>,...)] -
               Added in Shorewall 4.5.12. When specified on a leaf class,
-              causes the class to use the FQ CODEL (Fair-queuing
-              Controlled-delay) queuing discipline rather than SFQ. See
-              tc-fq_codel (8) for additional information.</para>
+              causes the class to use the FQ CODEL (<firstterm>Fair-queuing
+              Controlled-delay</firstterm>) queuing discipline rather than
+              SFQ. See tc-fq_codel (8) for additional information.</para>
 
               <para>See <ulink
               url="manpages/shorewall-tcdevices.html">shorewall-tcdevices</ulink>