diff --git a/source/00_supperthomas/15_zephyr/index.rst b/source/00_supperthomas/15_zephyr/index.rst
index 6319bdf..ced24c2 100644
--- a/source/00_supperthomas/15_zephyr/index.rst
+++ b/source/00_supperthomas/15_zephyr/index.rst
@@ -7,3 +7,4 @@
     01_NCS_quick_start/index.md
     01_NCS_quick_start/build_arch.md
     02_ZEPHYR_QUICK_START/index.md
+    06_devicetree/devicetree.md
\ No newline at end of file