diff --git a/Doc/conf.py b/Doc/conf.py
index 10b9d6e44d9..c718d8b4322 100644
--- a/Doc/conf.py
+++ b/Doc/conf.py
@@ -86,7 +86,7 @@
 }
 
 # Output file base name for HTML help builder.
-htmlhelp_basename = 'pydoc'
+htmlhelp_basename = 'python' + release.replace('.', '')
 
 
 # Options for LaTeX output