diff --git a/fhem/FHEM/98_average.pm b/fhem/FHEM/98_average.pm
index 243b8d359..dc6a85b91 100644
--- a/fhem/FHEM/98_average.pm
+++ b/fhem/FHEM/98_average.pm
@@ -195,7 +195,7 @@ average_Notify($$)
 =item summary_DE berechnet Durchschnittswerte (als Readings)
 =begin html
 
-<a name="average"></a>
+<a id="average"></a>
 <h3>average</h3>
 <ul>
 
@@ -204,7 +204,7 @@ average_Notify($$)
 
   <br>
 
-  <a name="averagedefine"></a>
+  <a id="average-define"></a>
   <b>Define</b>
   <ul>
     <code>define &lt;name&gt; average &lt;regexp&gt;</code><br>
@@ -271,31 +271,42 @@ average_Notify($$)
     </PRE>
   </ul>
 
-  <a name="averageset"></a>
+  <a id="average-set"></a>
   <b>Set</b> <ul>N/A</ul><br>
 
-  <a name="averageget"></a>
+  <a id="average-get"></a>
   <b>Get</b> <ul>N/A</ul><br>
 
-  <a name="averageattr"></a>
+  <a id="average-attr"></a>
   <b>Attributes</b>
   <ul>
     <li><a href="#disable">disable</a></li>
     <li><a href="#disabledForIntervals">disabledForIntervals</a></li>
-    <li>computeMethod</li>
+
+    <a id="average-attr-computeMethod"></a>
+    <li>computeMethod [integral|counter]<br>
       defines how values are added up for the average calculation. This
       attribute can be set to integral or counter.
       The integral mode is meant for measuring continuous values like
       temperature, counter is meant for adding up values, e.g. from a
       feeding unit. In the first case, the time between the events plays an
-      important role, in the second case not. Default is integral.
-    <li>nominmax</li>
-      don't compute min and max values. Default is 0 (compute min &amp; max).
-    <li>noaverage</li>
-      don't compute average values. Default is 0 (compute avarage).
+      important role, in the second case not. Default is integral.</li><br>
+
+    <a id="average-attr-floatformat"></a>
+    <li>floatformat &lt;formatstring&gt;<br>
+      string used in sprintf to format the numbers, default is %0.1f</li></br>
+
+    <a id="average-attr-nominmax"></a>
+    <li>nominmax [0|1]<br>
+      don't compute min and max values. Default is 0 (compute min &amp;
+      max).</li>
+
+    <a id="average-attr-noaverage"></a>
+    <li>noaverage [0|1]<br>
+      don't compute average values. Default is 0 (compute avarage).</li><br>
   </ul>
 
-  <a name="averageevents"></a>
+  <a id="average-events"></a>
   <b>Generated events:</b>
   <ul>
     <li>&lt;eventname&gt;_avg_day: $avg_day</li>
@@ -307,6 +318,7 @@ average_Notify($$)
     <li>&lt;eventname&gt;_max_day: $max_day</li>
     <li>&lt;eventname&gt;_max_month: $max_month</li>
   </ul>
+
 </ul>