diff --git a/docs/disable_with_comments.rst b/docs/disable_with_comments.rst
index 976b184..a973da6 100644
--- a/docs/disable_with_comments.rst
+++ b/docs/disable_with_comments.rst
@@ -117,7 +117,7 @@ post-template processing).
 Example of a Jinja2 code that cannot be parsed as YAML because it contains
 invalid tokens ``{%`` and ``%}``:
 
-.. code-block::
+.. code-block:: text
 
  # This file IS NOT valid YAML and will produce syntax errors
  {% if extra_info %}