diff --git a/docs/index.txt b/docs/index.txt
index 076f9a35f..113fba3a6 100644
--- a/docs/index.txt
+++ b/docs/index.txt
@@ -7,7 +7,7 @@ dulwich - Python implementation of Git
 Overview
 ========
 
-.. include:: ../README
+.. include:: ../README.md
 
 Documentation
 =============