Change "_filename" to "_identifier" for carrierwave

app/views/admin/assets/_asset.html.erb

@@ -5,7 +5,7 @@
 	</td>
 	<td><%= asset.description %></td>
 	<td><%= asset.data.file.content_type %></td>
-	<td><%= asset.data_filename %></td>
+	<td><%= asset.data_identifier %></td>
 	<td><%= number_to_human_size(asset.data.file.file_length) %></td>
 	<td class="action">
 	  <%= link_to t(:edit), edit_admin_asset_path(asset), :remote => true, :class => 'edit' %>