diff --git a/refdoc/chapters/preprocessor.xml b/refdoc/chapters/preprocessor.xml
index f12a45bbbed45e1e36c36f33f8e9bf7ef239e98b..44544dc0bc49baa53af496205fee0c3fae3394d3 100644
--- a/refdoc/chapters/preprocessor.xml
+++ b/refdoc/chapters/preprocessor.xml
@@ -185,11 +185,9 @@ do_something(#string "the_file.wks");
 </section>
 
 
-<!--
 <section title="Predefined defines">
-  <insert-move entity="define::"/>
+  <insert-move entity="cpp::"/>
 </section>
--->
 
 <!--