diff --git a/cps/templates/detail.html b/cps/templates/detail.html
index a1e5194d..7e30022d 100644
--- a/cps/templates/detail.html
+++ b/cps/templates/detail.html
@@ -15,46 +15,49 @@
       <div class="btn-toolbar" role="toolbar">
         <div class="btn-group" role="group" aria-label="Download, send to Kindle, reading">
           {% if g.user.role_download() %}
+            {% if entry.data|length %}
             <div class="btn-group" role="group">
-            {% if entry.data|length < 3 %}
-              <button type="button" class="btn btn-primary">
-                {{_('Download')}} :
-              </button>
-                {% for format in entry.data %}
-                <a href="{{ url_for('get_download_link_ext', book_id=entry.id, book_format=format.format|lower, anyname=entry.id|string+'.'+format.format) }}" id="btnGroupDrop1{{format.format|lower}}" class="btn btn-primary" role="button">
-                  <span class="glyphicon glyphicon-download"></span>{{format.format}} ({{ format.uncompressed_size|filesizeformat }})
-                </a>
-                {% endfor %}
-              {% else %}
-                <button id="btnGroupDrop1" type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
-                  <span class="glyphicon glyphicon-download"></span> {{_('Download')}}
-                  <span class="caret"></span>
-                </button>
-                <ul class="dropdown-menu" aria-labelledby="btnGroupDrop1">
-                {% for format in entry.data %}
-                  <li><a href="{{ url_for('get_download_link_ext', book_id=entry.id, book_format=format.format|lower, anyname=entry.id|string+'.'+format.format) }}">{{format.format}} ({{ format.uncompressed_size|filesizeformat }})</a></li>
-                {% endfor %}
-                </ul>
-              {% endif %}
+                {% if entry.data|length < 3 %}
+                  <button type="button" class="btn btn-primary">
+                    {{_('Download')}} :
+                  </button>
+                  {% for format in entry.data %}
+                  <a href="{{ url_for('get_download_link_ext', book_id=entry.id, book_format=format.format|lower, anyname=entry.id|string+'.'+format.format) }}" id="btnGroupDrop1{{format.format|lower}}" class="btn btn-primary" role="button">
+                    <span class="glyphicon glyphicon-download"></span>{{format.format}} ({{ format.uncompressed_size|filesizeformat }})
+                  </a>
+                  {% endfor %}
+                {% else %}
+                  <button id="btnGroupDrop1" type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+                    <span class="glyphicon glyphicon-download"></span> {{_('Download')}}
+                    <span class="caret"></span>
+                  </button>
+                  <ul class="dropdown-menu" aria-labelledby="btnGroupDrop1">
+                  {% for format in entry.data %}
+                    <li><a href="{{ url_for('get_download_link_ext', book_id=entry.id, book_format=format.format|lower, anyname=entry.id|string+'.'+format.format) }}">{{format.format}} ({{ format.uncompressed_size|filesizeformat }})</a></li>
+                  {% endfor %}
+                  </ul>
+                {% endif %}
             </div>
+            {% endif %}
           {% endif %}
-
             {% if g.user.kindle_mail and g.user.is_authenticated %}
             <a href="{{url_for('send_to_kindle', book_id=entry.id)}}" id="sendbtn" class="btn btn-primary" role="button"><span class="glyphicon glyphicon-send"></span> {{_('Send to Kindle')}}</a>
             {% endif %}
+              {% if entry.data|length  %}
               <div class="btn-group" role="group">
                 <button id="read-in-browser" type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                   <span class="glyphicon glyphicon-eye-open"></span> {{_('Read in browser')}}
                   <span class="caret"></span>
                 </button>
-                <ul class="dropdown-menu" aria-labelledby="read-in-browser">
-                  {% for format in entry.data %}
-                  {%if format.format|lower == 'epub' or format.format|lower == 'txt' or format.format|lower == 'pdf' or format.format|lower == 'cbr' or format.format|lower == 'cbt' or format.format|lower == 'cbz' %}
-                  <li><a target="_blank" href="{{ url_for('read_book', book_id=entry.id, book_format=format.format|lower) }}">{{format.format}}</a></li>
-                  {% endif %}
-                  {%endfor%}
-                </ul>
+                    <ul class="dropdown-menu" aria-labelledby="read-in-browser">
+                    {% for format in entry.data %}
+                      {%if format.format|lower == 'epub' or format.format|lower == 'txt' or format.format|lower == 'pdf' or format.format|lower == 'cbr' or format.format|lower == 'cbt' or format.format|lower == 'cbz' %}
+                      <li><a target="_blank" href="{{ url_for('read_book', book_id=entry.id, book_format=format.format|lower) }}">{{format.format}}</a></li>
+                      {% endif %}
+                    {%endfor%}
+                    </ul>
               </div>
+              {% endif %}
         </div>
       </div>
       <h2>{{entry.title}}</h2>