diff --git a/manual/src/side-by-side-view.md b/manual/src/side-by-side-view.md
index b77f159d9..b8e330944 100644
--- a/manual/src/side-by-side-view.md
+++ b/manual/src/side-by-side-view.md
@@ -9,6 +9,9 @@ By default, side-by-side view has line-numbers activated, and has syntax highlig
 
 <table><tr><td><img width=800px src="https://user-images.githubusercontent.com/52205/87230973-412eb900-c381-11ea-8aec-cc200290bd1b.png" alt="image" /></td></tr></table>
 
+> [!NOTE]
+> Unfortunately side-by-side does **not** work with `git add --patch`. [Explanation](https://github.com/dandavison/delta/issues/580#issuecomment-829609874)
+
 To activate and deactivate side-by-side view from the command line, consider using the [`DELTA_FEATURES`](./features-named-groups-of-settings.md) environment variable. For example:
 
 ```sh