diff --git a/docs/post_build_script.py b/docs/post_build_script.py
new file mode 100644
index 00000000..f2073bfb
--- /dev/null
+++ b/docs/post_build_script.py
@@ -0,0 +1,7 @@
+import shutil
+import os
+
+custom_index = 'index.html'
+built_book = '_build/html'
+
+shutil.copy2(custom_index, os.path.join(built_book, 'index.html'))