diff --git a/sites/all/modules/drush/commands/core/site_install.drush.inc b/sites/all/modules/drush/commands/core/site_install.drush.inc
index f48bf9b32a39ddc09a958609e7dbaaa6b7f5a893..06a7561c3dbded807bce4fa6f6af8eee323c9f43 100644
--- a/sites/all/modules/drush/commands/core/site_install.drush.inc
+++ b/sites/all/modules/drush/commands/core/site_install.drush.inc
@@ -54,6 +54,8 @@ function drush_core_pre_site_install() {
 
   // Now we can bootstrap up to the specified site if not already there.
   drush_bootstrap(DRUSH_BOOTSTRAP_DRUPAL_SITE);
+  // Don't drop databases.  No idea why they wanted to do that.
+  return;
 
   // Drop and create DB if needed.
   // TODO: support db-su like sql sync.