diff --git a/source/guides/windows-applications-embedding.rst b/source/guides/windows-applications-embedding.rst
index a259dcb5e..75bbb925e 100644
--- a/source/guides/windows-applications-embedding.rst
+++ b/source/guides/windows-applications-embedding.rst
@@ -170,6 +170,8 @@ The driver application
 This is the only part of your application that has to be written in C. The
 application code should look like the following::
 
+..code-block:: c
+
     /* Include the Python headers */
     #include <Python.h>