diff --git a/src/applications/project/typeahead/PhabricatorProjectDatasource.php b/src/applications/project/typeahead/PhabricatorProjectDatasource.php
--- a/src/applications/project/typeahead/PhabricatorProjectDatasource.php
+++ b/src/applications/project/typeahead/PhabricatorProjectDatasource.php
@@ -82,8 +82,11 @@
         $closed = pht('Archived');
       }
 
-      $all_strings = mpull($proj->getSlugs(), 'getSlug');
+      $all_strings = array();
       $all_strings[] = $proj->getDisplayName();
+      foreach ($proj->getSlugs() as $project_slug) {
+        $all_strings[] = $project_slug->getSlug();
+      }
       $all_strings = implode(' ', $all_strings);
 
       $proj_result = id(new PhabricatorTypeaheadResult())