diff --git a/includes/common.inc b/includes/common.inc
index 95e03e8..03b6514 100644
--- a/includes/common.inc
+++ b/includes/common.inc
@@ -7432,7 +7432,8 @@ function entity_create_stub_entity($entity_type, $ids) {
  *   Whether to reset the internal cache for the requested entity type.
  *
  * @return
- *   An array of entity objects indexed by their ids.
+ *   An array of entity objects indexed by their ids. When no results are
+ *   found, an empty array is returned.
  *
  * @todo Remove $conditions in Drupal 8.
  */
diff --git a/includes/entity.inc b/includes/entity.inc
index a3cdf74..aaa39d8 100644
--- a/includes/entity.inc
+++ b/includes/entity.inc
@@ -39,7 +39,8 @@ interface DrupalEntityControllerInterface {
    *   An array of conditions in the form 'field' => $value.
    *
    * @return
-   *   An array of entity objects indexed by their ids.
+   *   An array of entity objects indexed by their ids. When no results are
+   *   found, an empty array is returned.
    */
   public function load($ids = array(), $conditions = array());
 }
diff --git a/modules/taxonomy/taxonomy.module b/modules/taxonomy/taxonomy.module
index 50d2fd6..c171c06 100644
--- a/modules/taxonomy/taxonomy.module
+++ b/modules/taxonomy/taxonomy.module
@@ -1092,7 +1092,8 @@ class TaxonomyVocabularyController extends DrupalDefaultEntityController {
  *   this function.
  *
  * @return
- *   An array of term objects, indexed by tid.
+ *   An array of term objects, indexed by tid. When no results are found, an
+ *   empty array is returned.
  *
  * @todo Remove $conditions in Drupal 8.
  */