diff --git a/doc/requirements-and-limitations.md b/doc/requirements-and-limitations.md
index 54820a4..49f2ceb 100644
--- a/doc/requirements-and-limitations.md
+++ b/doc/requirements-and-limitations.md
@@ -12,7 +12,8 @@
 ### Limitations
 
 - Foreign keys not supported. They may be supported in the future, to some extent.
-- Triggers are not supported. they may be supported in the future.
+- Triggers are not supported. They may be supported in the future.
+- MySQL 5.7 generated columns are not supported. They may be supported in the future.
 - The two _before_ & _after_ tables must share some `UNIQUE KEY`. Such key would be used by `gh-ost` to iterate the table.
   - As an example, if your table has a single `UNIQUE KEY` and no `PRIMARY KEY`, and you wish to replace it with a `PRIMARY KEY`, you will need two migrations: one to add the `PRIMARY KEY` (this migration will use the existing `UNIQUE KEY`), another to drop the now redundant `UNIQUE KEY` (this migration will use the `PRIMARY KEY`).
 - The chosen migration key must not include columns with `NULL` values.