Index: HTML-FormFu-Model-DBIC/lib/HTML/FormFu/Model/DBIC.pm
===================================================================
--- HTML-FormFu-Model-DBIC/lib/HTML/FormFu/Model/DBIC.pm	(revision 1530)
+++ HTML-FormFu-Model-DBIC/lib/HTML/FormFu/Model/DBIC.pm	(working copy)
@@ -1296,7 +1296,10 @@
 The general principle is the same as for C<might_have> and C<has_one> above,
 except you should use a L<Repeatable|HTML::FormFu::Element::Repeatable>
 element instead of a Block, and it needs to contain a
-L<Hidden|HTML::FormFu::Element::Hidden> field corresponding to the foreign key.
+L<Hidden|HTML::FormFu::Element::Hidden> field corresponding to the primary key
+of the target table. This means that the table must have a single column
+primary key - it will not work with a table that has a composite or
+multi-column key.
 
 The Repeatable block's
 L<nested_name|HTML::FormFu::Element::Repeatable/nested_name> must be set to the