diff --git a/src/doc/user/usermanual.html b/src/doc/user/usermanual.html
index e5795671..99ec3fe9 100644
--- a/src/doc/user/usermanual.html
+++ b/src/doc/user/usermanual.html
@@ -20,8 +20,8 @@ alink="#0000FF">
     <div class="titlepage">
       <div>
         <div>
-          <h1 class="title"><a name="idp18774528" id=
-          "idp18774528"></a>Recoll user manual</h1>
+          <h1 class="title"><a name="idp32285376" id=
+          "idp32285376"></a>Recoll user manual</h1>
         </div>
 
         <div>
@@ -109,13 +109,13 @@ alink="#0000FF">
                 multiple indexes</a></span></dt>
 
                 <dt><span class="sect2">2.1.3. <a href=
-                "#idp50836576">Document types</a></span></dt>
+                "#idp37906544">Document types</a></span></dt>
 
                 <dt><span class="sect2">2.1.4. <a href=
-                "#idp50856176">Indexing failures</a></span></dt>
+                "#idp37926224">Indexing failures</a></span></dt>
 
                 <dt><span class="sect2">2.1.5. <a href=
-                "#idp50863632">Recovery</a></span></dt>
+                "#idp37933680">Recovery</a></span></dt>
               </dl>
             </dd>
 
@@ -985,8 +985,8 @@ alink="#0000FF">
           <div class="titlepage">
             <div>
               <div>
-                <h3 class="title"><a name="idp50836576" id=
-                "idp50836576"></a>2.1.3.&nbsp;Document types</h3>
+                <h3 class="title"><a name="idp37906544" id=
+                "idp37906544"></a>2.1.3.&nbsp;Document types</h3>
               </div>
             </div>
           </div>
@@ -1079,8 +1079,8 @@ indexedmimetypes = application/pdf
           <div class="titlepage">
             <div>
               <div>
-                <h3 class="title"><a name="idp50856176" id=
-                "idp50856176"></a>2.1.4.&nbsp;Indexing
+                <h3 class="title"><a name="idp37926224" id=
+                "idp37926224"></a>2.1.4.&nbsp;Indexing
                 failures</h3>
               </div>
             </div>
@@ -1120,8 +1120,8 @@ indexedmimetypes = application/pdf
           <div class="titlepage">
             <div>
               <div>
-                <h3 class="title"><a name="idp50863632" id=
-                "idp50863632"></a>2.1.5.&nbsp;Recovery</h3>
+                <h3 class="title"><a name="idp37933680" id=
+                "idp37933680"></a>2.1.5.&nbsp;Recovery</h3>
               </div>
             </div>
           </div>