diff --git a/umn/source/conf.py b/umn/source/conf.py
index 4557edf..2ba353a 100644
--- a/umn/source/conf.py
+++ b/umn/source/conf.py
@@ -94,6 +94,9 @@ html_title = "Cloud Container Service - User Guide"
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ['_static']
 
+# Do not include sources into the rendered results
+html_copy_source = False
+
 # -- Options for PDF output --------------------------------------------------
 latex_documents = [
     ('index',