diff --git a/mkdocs.yml b/mkdocs.yml
index f49f891312710dcae28cff293ccc52bd8ee77d75..6e4a5f6840fabcf4d82a80b60e9b15d186139966 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -73,12 +73,16 @@ extra:
 # Page tree
 nav:
   - 1. Deployment Guide:
-      - 1.1. Configure your Machine: 
-          - 1.1.1. Physical Server: ./deployment_guide/configure_your_machine/physical_server.md
-          - 1.1.2. Oracle Virtual Box: ./deployment_guide/configure_your_machine/oracle_virtual_box.md
-          - 1.1.3. VMWare Fusion: ./deployment_guide/configure_your_machine/vm_ware_fusion.md
-          - 1.1.4. OpenStack: ./deployment_guide/configure_your_machine/openstack.md
-          - 1.1.5. Vagrant Box: ./deployment_guide/configure_your_machine/vagrant_box.md
+      - file: ./deployment_guide/deployment_guide.md
+      - subitems:      
+          - 1.1. Configure your Machine:
+              - file: ./deployment_guide/configure_your_machine/configure_your_machine.md
+              - subitems:              
+                  - 1.1.1. Physical Server: ./deployment_guide/configure_your_machine/physical_server.md
+                  - 1.1.2. Oracle Virtual Box: ./deployment_guide/configure_your_machine/oracle_virtual_box.md
+                  - 1.1.3. VMWare Fusion: ./deployment_guide/configure_your_machine/vm_ware_fusion.md
+                  - 1.1.4. OpenStack: ./deployment_guide/configure_your_machine/openstack.md
+                  - 1.1.5. Vagrant Box: ./deployment_guide/configure_your_machine/vagrant_box.md
       - 1.2. Install MicroK8s: ./deployment_guide/install_micro_k8s/install_micro_k8s.md
       - 1.3. Deploy TeraFlowSDN: ./deployment_guide/deploy_TeraFlowSDN/deploy_TeraFlowSDN.md  
       - 1.4. WebUI and Grafana Dashboards: ./deployment_guide/webUI_and_grafana_dashboards/webUI_and_grafana_dashboards.md