diff --git a/core/modules/entity/lib/Drupal/entity/EntityFieldQuery.php b/core/modules/entity/lib/Drupal/entity/EntityFieldQuery.php
index 05f338b..cf51156 100644
--- a/core/modules/entity/lib/Drupal/entity/EntityFieldQuery.php
+++ b/core/modules/entity/lib/Drupal/entity/EntityFieldQuery.php
@@ -249,6 +249,9 @@ class EntityFieldQuery {
   /**
    * Adds a condition on field values.
    *
+   * Note that entities with empty field values will be excluded from the
+   * EntityFieldQuery results when using this method.
+   *
    * @param $field
    *   Either a field name or a field array.
    * @param $column
@@ -462,7 +465,9 @@ class EntityFieldQuery {
    * Orders the result set by a given field column.
    *
    * If called multiple times, the query will order by each specified column in
-   * the order this method is called.
+   * the order this method is called. Note that entities with empty field
+   * values will be excluded from the EntityFieldQuery results when using this
+   * method.
    *
    * @param $field
    *   Either a field name or a field array.