diff --git a/_sources/lectures/TWP65/toctree_en.rst b/_sources/lectures/TWP65/toctree_en.rst
index de99f27c82..ffa06b8e5d 100644
--- a/_sources/lectures/TWP65/toctree_en.rst
+++ b/_sources/lectures/TWP65/toctree_en.rst
@@ -1,6 +1,6 @@
-==============================
+===============================
 Introduction to Web Development
-==============================
+===============================
 
 
 .. image:: ../img/TWP10_001.jpeg