diff --git a/src/HAB/Solr/Response/Json/Terms.php b/src/HAB/Solr/Response/Json/Terms.php
index 115362d818378ada2d2cfe96d04eee177851c91e..fcb102cafbb00924afc12c0c625e9e06b60af4b1 100644
--- a/src/HAB/Solr/Response/Json/Terms.php
+++ b/src/HAB/Solr/Response/Json/Terms.php
@@ -84,7 +84,7 @@ class Terms implements IteratorAggregate
      *
      * @param string $field Field name
      *
-     * @return array
+     * @return array|null
      */
     public function getFieldTerms($field)
     {