diff --git a/lib/Doctrine/ODM/PHPCR/Mapping/ClassMetadataFactory.php b/lib/Doctrine/ODM/PHPCR/Mapping/ClassMetadataFactory.php
index 5aa185018..1e06ab2d7 100644
--- a/lib/Doctrine/ODM/PHPCR/Mapping/ClassMetadataFactory.php
+++ b/lib/Doctrine/ODM/PHPCR/Mapping/ClassMetadataFactory.php
@@ -203,6 +203,9 @@ private function addInheritedFields(ClassMetadata $subClass, ClassMetadata $pare
         if ($parentClass->localeMapping) {
             $subClass->mapLocale($parentClass->mappings[$parentClass->localeMapping], $parentClass);
         }
+        if ($parentClass->depthMapping) {
+            $subClass->mapDepth($parentClass->mappings[$parentClass->depthMapping], $parentClass);
+        }
         if ($parentClass->versionNameField) {
             $subClass->mapVersionName($parentClass->mappings[$parentClass->versionNameField], $parentClass);
         }