diff --git a/admin/batch_manager.php b/admin/batch_manager.php
index 0842e761e..cbeb0ebe9 100644
--- a/admin/batch_manager.php
+++ b/admin/batch_manager.php
@@ -99,14 +99,29 @@ if (isset($_POST['submitFilter']))
 
     if ('duplicates' == $_POST['filter_prefilter'])
     {
+      $has_options = false;
+
+      if (isset($_POST['filter_duplicates_checksum']))
+      {
+        $_SESSION['bulk_manager_filter']['duplicates_checksum'] = true;
+        $has_options = true;
+      }
+
       if (isset($_POST['filter_duplicates_date']))
       {
         $_SESSION['bulk_manager_filter']['duplicates_date'] = true;
+        $has_options = true;
       }
       
       if (isset($_POST['filter_duplicates_dimensions']))
       {
         $_SESSION['bulk_manager_filter']['duplicates_dimensions'] = true;
+        $has_options = true;
+      }
+
+      if (!$has_options or isset($_POST['filter_duplicates_filename']))
+      {
+        $_SESSION['bulk_manager_filter']['duplicates_filename'] = true;
       }
     }
   }
@@ -357,7 +372,17 @@ SELECT
 
 
   case 'duplicates':
-    $duplicates_on_fields = array('file');
+    $duplicates_on_fields = array();
+
+    if (isset($_SESSION['bulk_manager_filter']['duplicates_filename']))
+    {
+      $duplicates_on_fields[] = 'file';
+    }
+
+    if (isset($_SESSION['bulk_manager_filter']['duplicates_checksum']))
+    {
+      $duplicates_on_fields[] = 'md5sum';
+    }
 
     if (isset($_SESSION['bulk_manager_filter']['duplicates_date']))
     {
diff --git a/admin/themes/default/template/batch_manager_global.tpl b/admin/themes/default/template/batch_manager_global.tpl
index 5ff1b96da..966f0ef25 100644
--- a/admin/themes/default/template/batch_manager_global.tpl
+++ b/admin/themes/default/template/batch_manager_global.tpl
@@ -349,7 +349,8 @@ var sliders = {
 
         <span id="duplicates_options" style="{if !isset($filter.prefilter) or $filter.prefilter ne 'duplicates'}display:none{/if}">
           {'based on'|translate}
-          <label class="font-checkbox"><span class="icon-check"></span><input type="checkbox" checked="checked" disabled="disabled"> {'file name'|translate}
+          <label class="font-checkbox"><span class="icon-check"></span><input type="checkbox" name="filter_duplicates_filename" {if isset($filter.duplicates_filename)}checked="checked"{/if}> {'file name'|translate}</label>
+          <label class="font-checkbox" title="md5sum"><span class="icon-check"></span><input type="checkbox" name="filter_duplicates_checksum" {if isset($filter.duplicates_checksum)}checked="checked"{/if}> {'checksum'|translate}</label>
           <label class="font-checkbox"><span class="icon-check"></span><input type="checkbox" name="filter_duplicates_date" {if isset($filter.duplicates_date) or (isset($filter.prefilter) and $filter.prefilter ne 'duplicates')}checked="checked"{/if}> {'date & time'|translate}</label>
           <label class="font-checkbox"><span class="icon-check"></span><input type="checkbox" name="filter_duplicates_dimensions" {if isset($filter.duplicates_dimensions)}checked="checked"{/if}> {'width & height'|translate}</label>
         </span>
diff --git a/language/en_UK/admin.lang.php b/language/en_UK/admin.lang.php
index a9ea33db5..5b1ec0c1e 100644
--- a/language/en_UK/admin.lang.php
+++ b/language/en_UK/admin.lang.php
@@ -998,4 +998,5 @@ $lang['Delete album "%s" and its %d sub-albums.'] = 'Delete album "%s" and its %
 $lang['delete album and all %d photos, even the %d associated to other albums'] = 'delete album and all %d photos, even the %d associated to other albums';
 $lang['delete album and the %d orphan photos'] = 'delete album and the %d orphan photos';
 $lang['delete only album, not photos'] = 'delete only album, not photos';
-$lang['Confirm deletion'] = 'Confirm deletion';
\ No newline at end of file
+$lang['Confirm deletion'] = 'Confirm deletion';
+$lang['checksum'] = 'checksum';
\ No newline at end of file
diff --git a/language/fr_FR/admin.lang.php b/language/fr_FR/admin.lang.php
index b3a7548c9..2be93f433 100644
--- a/language/fr_FR/admin.lang.php
+++ b/language/fr_FR/admin.lang.php
@@ -1000,4 +1000,5 @@ $lang['Delete album "%s" and its %d sub-albums.'] = 'Supprimer l\'album "%s" et
 $lang['delete album and all %d photos, even the %d associated to other albums'] = 'supprimer l\'album et toutes les %d photos, mêmes les %d associées à d\'autres albums';
 $lang['delete album and the %d orphan photos'] = 'supprimer l\'album et les %d photos orphelines';
 $lang['delete only album, not photos'] = 'supprimer uniquement l\'album, pas les photos';
-$lang['Confirm deletion'] = 'Confirmer la suppression';
\ No newline at end of file
+$lang['Confirm deletion'] = 'Confirmer la suppression';
+$lang['checksum'] = 'somme de contrôle';
\ No newline at end of file