Index: pm.drush.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/drush/commands/pm/pm.drush.inc,v
retrieving revision 1.43
diff -u -r1.43 pm.drush.inc
--- pm.drush.inc	19 Aug 2009 02:33:56 -0000	1.43
+++ pm.drush.inc	26 Aug 2009 11:13:27 -0000
@@ -240,8 +240,10 @@
       if(!drush_confirm(dt('Do you really want to continue?'))) {
         drush_die('Aborting.');
       }
+      // Make sure the install API is available.
+      require_once './includes/install.inc';
       // We enable the modules explicitly here, to pass dependency validation in the form submit.
-      module_enable($modules);
+      drupal_install_modules($modules);
       $current = drupal_map_assoc($enabled, 'pm_true');
       // Add the list of enabled modules from the active modules list.
       $active_modules = array_merge($current, drupal_map_assoc($modules, 'pm_true'));