diff --git a/openHAB2_beginners_walkthrough.md b/openHAB2_beginners_walkthrough.md
index 7d68b4b..5599f6e 100644
--- a/openHAB2_beginners_walkthrough.md
+++ b/openHAB2_beginners_walkthrough.md
@@ -1,5 +1,6 @@
 
 | layout |
+|--------|
 | tutorial-beginner |