diff --git a/src/IDF/Migrations/18DownloadMD5.php b/src/IDF/Migrations/18DownloadMD5.php
new file mode 100644
index 0000000..159e909
--- /dev/null
+++ b/src/IDF/Migrations/18DownloadMD5.php
@@ -0,0 +1,63 @@
+<?php
+/* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+# ***** BEGIN LICENSE BLOCK *****
+# This file is part of InDefero, an open source project management application.
+# Copyright (C) 2008-2011 Céondo Ltd and contributors.
+#
+# InDefero is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# InDefero is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+# ***** END LICENSE BLOCK ***** */
+
+/**
+ * Add the md5 column for the download model.
+ */
+
+function IDF_Migrations_18DownloadMD5_up($params=null)
+{
+    // Add the row
+    $table = Pluf::factory('IDF_Upload')->getSqlTable();
+    $sql = array();
+    $sql['PostgreSQL'] = 'ALTER TABLE '.$table.' ADD COLUMN "md5" VARCHAR(32) DEFAULT \'\'';
+    $sql['MySQL'] = 'ALTER TABLE '.$table.' ADD COLUMN `md5` VARCHAR(32) DEFAULT \'\'';
+    $db = Pluf::db();
+    $engine = Pluf::f('db_engine');
+    if (!isset($sql[$engine])) {
+        throw new Exception('SQLite complex migration not supported.');
+    }
+    $db->execute($sql[$engine]);
+    
+    // Process md5 of already uploaded file
+    $files = Pluf::factory('IDF_Upload')->getList();
+    foreach ($files as $f) {
+        $f->md5 = md5_file (Pluf::f('upload_path') . '/' . $f->get_project()->shortname . '/files/' . $f->file);
+        $f->update();
+    }
+}
+
+function IDF_Migrations_18DownloadMD5_down($params=null)
+{
+    // Remove the row
+    $table = Pluf::factory('IDF_Upload')->getSqlTable();
+    $sql = array();
+    $sql['PostgreSQL'] = 'ALTER TABLE '.$table.' DROP COLUMN "md5"';
+    $sql['MySQL'] = 'ALTER TABLE '.$table.' DROP COLUMN `md5`';
+    $db = Pluf::db();
+    $engine = Pluf::f('db_engine');
+    if (!isset($sql[$engine])) {
+        throw new Exception('SQLite complex migration not supported.');
+    }
+    $db->execute($sql[$engine]);
+}
diff --git a/src/IDF/Upload.php b/src/IDF/Upload.php
index d4e6094..b4105a2 100644
--- a/src/IDF/Upload.php
+++ b/src/IDF/Upload.php
@@ -77,6 +77,12 @@ class IDF_Upload extends Pluf_Model
                                   'default' => 0,
                                   'verbose' => __('file size in bytes'),
                                   ),
+                            'md5' =>
+                            array(
+                                  'type' => 'Pluf_DB_Field_Text',
+                                  'blank' => true,
+                                  'verbose' => __('MD5'),
+                                  ),
                             'submitter' =>
                             array(
                                   'type' => 'Pluf_DB_Field_Foreignkey',
@@ -144,6 +150,7 @@ class IDF_Upload extends Pluf_Model
         if ($this->id == '') {
             $this->creation_dtime = gmdate('Y-m-d H:i:s');
             $this->modif_dtime = gmdate('Y-m-d H:i:s');
+            $this->md5 = md5_file (Pluf::f('upload_path') . '/' . $this->get_project()->shortname . '/files/' . $this->file);
         }
     }
 
diff --git a/src/IDF/templates/idf/downloads/view.html b/src/IDF/templates/idf/downloads/view.html
index 792c0a1..478a0b9 100644
--- a/src/IDF/templates/idf/downloads/view.html
+++ b/src/IDF/templates/idf/downloads/view.html
@@ -5,6 +5,8 @@
 <div class="download-file">
 {if $deprecated}<p class="smaller">{blocktrans}<strong>Attention!</strong> This file is marked as deprecated, download it only if you are sure you need this specific version.{/blocktrans}</p>{/if}
 <a href="{url 'IDF_Views_Download::download', array($project.shortname, $file.file)}">{$file}</a> - {$file.filesize|size}
+<br />
+<span class="helptext">{trans 'md5:'} {$file.md5}</span>
 </div>
 {if $file.changelog}
 <h2 class="changes">{trans 'Changes'}</h2>