Fix broken link

Author: Jan-Olof Hendig

doc/Type/Supplier.pod6

@@ -24,7 +24,7 @@ Two 42
 
 I<on demand> supplies are created by the factory methods of the L<Supply>
 class or by the C<supply> keyword. A mixture of a live and on-demand C<Supply> can
-be created with a L<Supplier::Preserving|/type/Supplier/Preserving>.
+be created with a L<Supplier::Preserving|/type/Supplier::Preserving>.
 
 =head1 Methods