diff --git a/twitter.module b/twitter.module
index 9dae9fb..7657904 100644
--- a/twitter.module
+++ b/twitter.module
@@ -349,10 +349,15 @@ function twitter_user_load($accounts) {
 /**
  * Implements hook_twitter_accounts().
  *
- * @return
- *   array with Twitter accounts
+ * @return array
+ *   All Twitter accounts for this user; the anonymous user will return an
+ *   empty array.
  */
 function twitter_twitter_accounts($account) {
+  if ($account->uid == 0) {
+    return array();
+  }
+
   $query = new EntityFieldQuery();
   $query->entityCondition('entity_type', 'twitter_account')
     ->propertyCondition('uid', $account->uid);