diff --git a/mkdocs_pt.yml b/mkdocs_pt.yml
index a411cc2..cc03a9d 100644
--- a/mkdocs_pt.yml
+++ b/mkdocs_pt.yml
@@ -83,6 +83,7 @@ extra:
 
 nav:
   - ./moving.md
+  - Thread Safety: https://github.com/hello-robot/stretch_body/blob/master/docs/is_thread_safe/README.md
   # - ./sensors.md # TODO
   # - ./audio.md
   # - ./pyfunmap.md