diff --git a/Documentation/conf.py b/Documentation/conf.py
index 1c6d9da5d1b5..38b240073336 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -246,16 +246,19 @@ htmlhelp_basename = 'TheLinuxKerneldoc'
 
 latex_elements = {
 # The paper size ('letterpaper' or 'a4paper').
-#'papersize': 'letterpaper',
+'papersize': 'a4paper',
 
 # The font size ('10pt', '11pt' or '12pt').
-#'pointsize': '10pt',
-
-# Additional stuff for the LaTeX preamble.
-#'preamble': '',
+'pointsize': '10pt',
 
 # Latex figure (float) alignment
 #'figure_align': 'htbp',
+
+# Additional stuff for the LaTeX preamble.
+    'preamble': '''
+        % Allow generate some pages in landscape
+        \\usepackage{lscape}
+     '''
 }
 
 # Grouping the document tree into LaTeX files. List of tuples