diff --git a/admin/cat_list.php b/admin/cat_list.php
index ae957792d..050b7c06a 100644
--- a/admin/cat_list.php
+++ b/admin/cat_list.php
@@ -307,6 +307,13 @@ foreach ($categories as $category)
     $tpl_cat['U_DELETE'] = $self_url.'&delete='.$category['id'];
     $tpl_cat['U_DELETE'].= '&pwg_token='.get_pwg_token();
   }
+  else
+  {
+    if ($conf['enable_synchronization'])
+    {
+      $tpl_cat['U_SYNC'] = $base_url.'site_update&site=1&cat_id='.$category['id'];
+    }
+  }
 
   if ( array_key_exists($category['id'], $categories_with_images) )
   {
diff --git a/admin/cat_modify.php b/admin/cat_modify.php
index 8f99a9155..3c944ce7b 100644
--- a/admin/cat_modify.php
+++ b/admin/cat_modify.php
@@ -270,6 +270,15 @@ else
                                     $category['cat_full_dir'] )
       )
     );
+
+  if ($conf['enable_synchronization'])
+  {
+    $template->assign(
+      'U_SYNC',
+      $base_url.'site_update&site=1&cat_id='.$category['id']
+      );
+  }
+
 }
 
 // representant management
diff --git a/admin/site_update.php b/admin/site_update.php
index 6b5ae775b..5b90729b8 100644
--- a/admin/site_update.php
+++ b/admin/site_update.php
@@ -809,8 +809,16 @@ else
       'meta_all'  => false,
       'meta_empty_overrides'  => false,
     );
-
+  
   $cat_selected = array();
+
+  if (isset($_GET['cat_id']))
+  {
+    check_input_parameter('cat_id', $_GET, false, PATTERN_ID);
+
+    $cat_selected = array($_GET['cat_id']);
+    $tpl_introduction['sync'] = 'files';
+  }
 }
 
 $tpl_introduction['privacy_level_options'] = get_privacy_level_options();
diff --git a/admin/themes/clear/icon/synchronize.png b/admin/themes/clear/icon/synchronize.png
new file mode 100644
index 000000000..72a8c0ec5
Binary files /dev/null and b/admin/themes/clear/icon/synchronize.png differ
diff --git a/admin/themes/default/icon/synchronize.png b/admin/themes/default/icon/synchronize.png
new file mode 100644
index 000000000..767bb3b6d
Binary files /dev/null and b/admin/themes/default/icon/synchronize.png differ
diff --git a/admin/themes/default/template/cat_list.tpl b/admin/themes/default/template/cat_list.tpl
index 1917bb3fa..2a535c13a 100644
--- a/admin/themes/default/template/cat_list.tpl
+++ b/admin/themes/default/template/cat_list.tpl
@@ -74,6 +74,9 @@ jQuery(document).ready(function(){ldelim}
         {if isset($category.U_MANAGE_PERMISSIONS) }
         <li><a href="{$category.U_MANAGE_PERMISSIONS}" title="{'edit album permissions'|@translate}" ><img src="{$themeconf.admin_icon_dir}/category_permissions.png" class="button" alt="{'Permissions'|@translate}"></a></li>
         {/if}
+        {if isset($category.U_SYNC) }
+        <li><a href="{$category.U_SYNC}" title="{'Synchronize'|@translate}"><img src="{$ROOT_URL}{$themeconf.admin_icon_dir}/synchronize.png" class="button" alt="{'Synchronize'|@translate}"></a></li>
+        {/if}
         {if isset($category.U_DELETE) }
         <li><a href="{$category.U_DELETE}" title="{'delete album'|@translate}" onclick="return confirm('{'Are you sure?'|@translate|@escape:javascript}');"><img src="{$themeconf.admin_icon_dir}/category_delete.png" class="button" alt="{'delete album'|@translate}"></a></li>
         {/if}
diff --git a/admin/themes/default/template/cat_modify.tpl b/admin/themes/default/template/cat_modify.tpl
index 8c51785e2..0e03aeacd 100644
--- a/admin/themes/default/template/cat_modify.tpl
+++ b/admin/themes/default/template/cat_modify.tpl
@@ -20,6 +20,9 @@
   {if isset($U_MANAGE_PERMISSIONS) }
   <li><a href="{$U_MANAGE_PERMISSIONS}" title="{'edit album permissions'|@translate}"><img src="{$ROOT_URL}{$themeconf.admin_icon_dir}/category_permissions.png" class="button" alt="{'Permissions'|@translate}"></a></li>
   {/if}
+  {if isset($U_SYNC) }
+  <li><a href="{$U_SYNC}" title="{'Synchronize'|@translate}"><img src="{$ROOT_URL}{$themeconf.admin_icon_dir}/synchronize.png" class="button" alt="{'Synchronize'|@translate}"></a></li>
+  {/if}
   {if isset($U_DELETE) }
   <li><a href="{$U_DELETE}" title="{'delete album'|@translate}"><img src="{$ROOT_URL}{$themeconf.admin_icon_dir}/category_delete.png" class="button" alt="{'delete album'|@translate}" onclick="return confirm('{'Are you sure?'|@translate|@escape:javascript}');"></a></li>
   {/if}