diff -u b/core/modules/system/system.module b/core/modules/system/system.module
--- b/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -2467,7 +2467,7 @@
     foreach ($module->info['dependencies'] as $dependant) {
       if (!isset($modules[$dependant]->info['required'])) {
         $modules[$dependant]->info['required'] = TRUE;
-        $modules[$dependant]->info['explanation'] = t('Dependency of required module (@module)', array('@module' => $module->name));
+        $modules[$dependant]->info['explanation'] = t('Dependency of required module @module', array('@module' => $module->name));
         // Ensure any dependencies it has are required.
         _system_rebuild_module_data_ensure_required($modules[$dependant], $modules);
       }