diff --git a/www/sflphone.funcs.php b/www/sflphone.funcs.php
index 6396c1135a0bba2d590def8662ec603516aaa6d9..a72927af3641fe5e5f2d80831aaf1e5d4abd10fd 100644
--- a/www/sflphone.funcs.php
+++ b/www/sflphone.funcs.php
@@ -114,7 +114,8 @@ function compile_page($hash, $page) {
 
   $output = '';
 
-  $p = popen("GIT_DIR=".$GIT_REPOS." git-show $hash | asciidoc --no-header-footer -", 'r');
+  // -d book so we can render H1s
+  $p = popen("GIT_DIR=".$GIT_REPOS." git-show $hash | asciidoc -d book --no-header-footer -", 'r');
 
   if (!$p) {
     return "Unable to compile file: $page ($hash)\n";