diff --git a/eng/req/items.rst b/eng/req/items.rst
index e48fdf9..db39547 100644
--- a/eng/req/items.rst
+++ b/eng/req/items.rst
@@ -1560,6 +1560,9 @@ This type refines the following types:
 * :ref:`SpecTypeInterfaceItemType` through the ``interface-type`` attribute if
   the value is ``unspecified-function``
 
+* :ref:`SpecTypeInterfaceItemType` through the ``interface-type`` attribute if
+  the value is ``unspecified-group``
+
 * :ref:`SpecTypeInterfaceItemType` through the ``interface-type`` attribute if
   the value is ``unspecified-type``