--- a/main.go
+++ b/main.go
@@ -17,7 +17,7 @@
 
 func main() {
 	var page, toc, xhtml, latex, smartypants, latexdashes, fractions bool
-	var css, cpuprofile string
+	var css, cpuprofile, head string
 	var repeat int
 	flag.BoolVar(&page, "page", false,
 		"Generate a standalone HTML page (implies -latex=false)")
@@ -39,6 +39,7 @@
 		"Write cpu profile to a file")
 	flag.IntVar(&repeat, "repeat", 1,
 		"Process the input multiple times (for benchmarking)")
+	flag.StringVar(&head, "head", "", "Add extra stuff to header")
 	flag.Usage = func() {
 		fmt.Fprintf(os.Stderr, "Markdown Processor "+
 			"\nAvailable at http://github.com/gomarkdown/markdown/cmd/mdtohtml\n\n"+
@@ -100,7 +101,8 @@
 		parser.FencedCode |
 		parser.Autolink |
 		parser.Strikethrough |
-		parser.SpaceHeadings
+		parser.SpaceHeadings |
+		parser.Footnotes
 
 	var renderer markdown.Renderer
 	if latex {
@@ -133,6 +135,7 @@
 			Flags: htmlFlags,
 			Title: title,
 			CSS:   css,
+			Head: []byte(head),
 		}
 		renderer = html.NewRenderer(params)
 	}