diff --git a/doc/manual/expressions/advanced-attributes.xml b/doc/manual/expressions/advanced-attributes.xml
index f8b84b98c..d476d613e 100644
--- a/doc/manual/expressions/advanced-attributes.xml
+++ b/doc/manual/expressions/advanced-attributes.xml
@@ -40,7 +40,7 @@ allowedReferences = [];
     recursively.  For example,
 
 <programlisting>
-allowedReferences = [ foobar ];
+allowedRequisites = [ foobar ];
 </programlisting>
 
     enforces that the output of a derivation cannot have any other