Index: modules/system/system.admin.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.admin.inc,v
retrieving revision 1.63.2.14
diff -u -p -r1.63.2.14 system.admin.inc
--- modules/system/system.admin.inc	1 Mar 2010 10:20:28 -0000	1.63.2.14
+++ modules/system/system.admin.inc	7 Apr 2010 14:20:00 -0000
@@ -628,6 +628,13 @@ function system_modules($form_state = ar
   // Get current list of modules.
   $files = module_rebuild_cache();
 
+  // Remove hidden modules from display list.
+  foreach ($files as $filename => $file) {
+    if (!empty($file->info['hidden'])) {
+      unset($files[$filename]);
+    }
+  }
+
   uasort($files, 'system_sort_modules_by_info_name');
 
   if (!empty($form_state['storage'])) {