diff --git a/application/Espo/ORM/DB/Mapper.php b/application/Espo/ORM/DB/Mapper.php
index cf7a5b01e6..d8c13be2cd 100644
--- a/application/Espo/ORM/DB/Mapper.php
+++ b/application/Espo/ORM/DB/Mapper.php
@@ -212,8 +212,8 @@ abstract class Mapper implements IMapper
                 $params['whereClause'][$foreignKey] = $entity->get($key);
 
                 if ($relType == IEntity::HAS_CHILDREN) {
-                    $foreignTypeKey = $keySet['foreignTypeKey'];
-                    $params['whereClause'][$foreignTypeKey] = $entity->getEntityType();
+                    $foreignType = $keySet['foreignType'];
+                    $params['whereClause'][$foreignType] = $entity->getEntityType();
                 }
 
                 if ($relType == IEntity::HAS_ONE) {
diff --git a/application/Espo/ORM/DB/Query/Base.php b/application/Espo/ORM/DB/Query/Base.php
index 7f923939f0..ea81854066 100644
--- a/application/Espo/ORM/DB/Query/Base.php
+++ b/application/Espo/ORM/DB/Query/Base.php
@@ -978,14 +978,14 @@ abstract class Base
                 if (isset($relOpt['foreignKey'])) {
                     $foreignKey = $relOpt['foreignKey'];
                 }
-                $foreignTypeKey = 'parentType';
+                $foreignType = 'parentType';
                 if (isset($relOpt['foreignType'])) {
-                    $foreignTypeKey = $relOpt['foreignType'];
+                    $foreignType = $relOpt['foreignType'];
                 }
                 return array(
                     'key' => $key,
                     'foreignKey' => $foreignKey,
-                    'foreignTypeKey' => $foreignTypeKey,
+                    'foreignType' => $foreignType,
                 );
 
             case IEntity::MANY_MANY: