diff --git a/Filter/HasChildFilter.php b/Filter/HasChildFilter.php
index 35957b480eed64faffd2d2b853e978120a20c77e..6af77f1f7b08f5ba7c4675c94a1d1f22892ad250 100644
--- a/Filter/HasChildFilter.php
+++ b/Filter/HasChildFilter.php
@@ -29,17 +29,17 @@ class HasChildFilter implements BuilderInterface
     /**
      * @var string
      */
-    private $query;
+    private $filter;
 
     /**
      * @param string           $type
-     * @param BuilderInterface $query
+     * @param BuilderInterface $filter
      * @param array            $parameters
      */
-    public function __construct($type, BuilderInterface $query, array $parameters = [])
+    public function __construct($type, BuilderInterface $filter, array $parameters = [])
     {
         $this->type = $type;
-        $this->query = $query;
+        $this->filter = $filter;
         $this->setParameters($parameters);
     }
 
@@ -58,8 +58,8 @@ class HasChildFilter implements BuilderInterface
     {
         $query = [
             'type' => $this->type,
-            'query' => [
-                $this->query->getType() => $this->query->toArray(),
+            'filter' => [
+                $this->filter->getType() => $this->filter->toArray(),
             ],
         ];
 
diff --git a/Filter/HasParentFilter.php b/Filter/HasParentFilter.php
index 4cc502d13ef0ff540e757a96b8854c39984989c9..50ee8e54aeee6d6798da9fcf597f410601626f3c 100644
--- a/Filter/HasParentFilter.php
+++ b/Filter/HasParentFilter.php
@@ -29,17 +29,17 @@ class HasParentFilter implements BuilderInterface
     /**
      * @var BuilderInterface
      */
-    private $query;
+    private $filter;
 
     /**
      * @param string           $parentType
-     * @param BuilderInterface $query
+     * @param BuilderInterface $filter
      * @param array            $parameters
      */
-    public function __construct($parentType, BuilderInterface $query, array $parameters = [])
+    public function __construct($parentType, BuilderInterface $filter, array $parameters = [])
     {
         $this->parentType = $parentType;
-        $this->query = $query;
+        $this->filter = $filter;
         $this->setParameters($parameters);
     }
 
@@ -58,8 +58,8 @@ class HasParentFilter implements BuilderInterface
     {
         $query = [
             'parent_type' => $this->parentType,
-            'query' => [
-                $this->query->getType() => $this->query->toArray(),
+            'filter' => [
+                $this->filter->getType() => $this->filter->toArray(),
             ],
         ];