diff --git a/src/applications/diviner/controller/DivinerFindController.php b/src/applications/diviner/controller/DivinerFindController.php
--- a/src/applications/diviner/controller/DivinerFindController.php
+++ b/src/applications/diviner/controller/DivinerFindController.php
@@ -58,7 +58,9 @@
 
     if (!$atoms) {
       $title_query = clone $query;
-      $title_query->withTitles(array($query_text));
+      if (phutil_nonempty_string($query_text)) {
+        $title_query->withTitles(array($query_text));
+      }
       $atoms = $title_query->execute();
     }