diff --git a/doc/ref/scheme-scheduling.texi b/doc/ref/scheme-scheduling.texi
index 4d1342ada..8512cde92 100644
--- a/doc/ref/scheme-scheduling.texi
+++ b/doc/ref/scheme-scheduling.texi
@@ -689,7 +689,8 @@ yet finished executing then wait for it to do so.
 
 
 @node Parallel Forms
-@section Parallel Forms
+@section Parallel forms
+@cindex parallel forms
 
 The functions described in this section are available from