diff --git a/doc/filters/index.rst b/doc/filters/index.rst
index 475b35c80..98a5d62dd 100644
--- a/doc/filters/index.rst
+++ b/doc/filters/index.rst
@@ -29,6 +29,7 @@ Filters
     html_to_markdown
     inline_css
     inky_to_html
+    invoke
     join
     json_encode
     keys