diff --git a/mkdocs.yml b/mkdocs.yml
index ad80fe87..e2bbfb27 100755
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -133,3 +133,4 @@ nav:
       - robotAssembly/index.md
       - robotAssembly/stage1.md
       - robotAssembly/stage2.md
+      - robotAssembly/stage3.md