--- a/doc/conf.py
+++ b/doc/conf.py
@@ -134,6 +134,9 @@
 # for source files.
 exclude_trees = ['_build']
 
+# If true, the reST sources are included in the HTML build as _sources/<name>.
+html_copy_source = False
+
 # The reST default role (used for this markup: `text`) to use for all documents.
 #default_role = None
 
