diff --git a/source/conf.py b/source/conf.py
index c6613ec4..dacd3746 100644
--- a/source/conf.py
+++ b/source/conf.py
@@ -255,7 +255,7 @@ latex_documents = [
 # For "manual" documents, if this is true, then toplevel headings are parts,
 # not chapters.
 #
-# latex_use_parts = False
+ latex_use_parts = True 
 
 # If true, show page references after internal links.
 #