diff --git a/docs/handbook/image-file-formats.rst b/docs/handbook/image-file-formats.rst
index b680072ac..926e33244 100644
--- a/docs/handbook/image-file-formats.rst
+++ b/docs/handbook/image-file-formats.rst
@@ -16,6 +16,8 @@ explicitly.
 Fully supported formats
 -----------------------
 
+.. contents:: Formats
+
 BMP
 ^^^