1 files changed, 2 insertions, 1 deletions

diff --git a/README.rst b/README.rst
index ef069d2..1b32c60 100644
--- a/README.rst
+++ b/README.rst
@@ -46,4 +46,5 @@ In ebuilds, note ``(de)register`` or using ``pkg_prerm`` is deprecated, use::
         eselect wine update --if-unset || die
     }
 
-Any arbitrary ``wine-myvariant`` is supported for custom ebuilds.
+Any arbitrary ``wine-myvariant`` is supported for custom ebuilds, except that
+the variant name should not contain hyphens (``-``).