diff --git a/doc/index.rst b/doc/index.rst
index 42853efa774..ecf2efeb335 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -15,8 +15,8 @@ Zephyr Project Documentation
 
 .. only:: (development or daily)
 
-   Welcome to the Zephyr Project's documentation
-   for the master tree under development (version |version|).
+   **Welcome to the Zephyr Project's documentation
+   for the master tree under development** (version |version|).
 
 Use the version selection menu on the left to view
 documentation for a specific version of Zephyr.