diff --git a/main.go b/main.go
index 60836c2..ffe2c16 100644
--- a/main.go
+++ b/main.go
@@ -120,6 +120,7 @@ func main() {
 	extensions |= blackfriday.EXTENSION_AUTOLINK
 	extensions |= blackfriday.EXTENSION_STRIKETHROUGH
 	extensions |= blackfriday.EXTENSION_SPACE_HEADERS
+	extensions |= blackfriday.EXTENSION_FOOTNOTES
 
 	var renderer blackfriday.Renderer
 	if latex {