diff --git a/Documentation/conf.py b/Documentation/conf.py
index 7830051b6837..bcb1af786e78 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -136,7 +136,7 @@ pygments_style = 'sphinx'
 todo_include_todos = False
 
 primary_domain = 'C'
-highlight_language = 'guess'
+highlight_language = 'none'
 
 # -- Options for HTML output ----------------------------------------------