diff --git a/docs/en/docs-nav.json b/docs/en/docs-nav.json
index cc53aa802f..2dbbb4a38e 100644
--- a/docs/en/docs-nav.json
+++ b/docs/en/docs-nav.json
@@ -115,6 +115,10 @@
     {
       "text": "Services",
       "items": [
+        {
+          "text": "Object to object mapping",
+          "path": "Object-To-Object-Mapping.md"
+        },
         {
           "text": "Object Serialization"
         },