diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt
index 5b697eee1b..8c2f736f3a 100644
--- a/Documentation/git-checkout.txt
+++ b/Documentation/git-checkout.txt
@@ -350,6 +350,10 @@ leave out at most one of `A` and `B`, in which case it defaults to `HEAD`.
 <tree-ish>::
 	Tree to checkout from (when paths are given). If not specified,
 	the index will be used.
++
+As a special case, you may use `"A...B"` as a shortcut for the
+merge base of `A` and `B` if there is exactly one merge base. You can
+leave out at most one of `A` and `B`, in which case it defaults to `HEAD`.
 
 \--::
 	Do not interpret any more arguments as options.
diff --git a/Documentation/git-restore.txt b/Documentation/git-restore.txt
index 84c6c40010..55bde91ef9 100644
--- a/Documentation/git-restore.txt
+++ b/Documentation/git-restore.txt
@@ -40,6 +40,10 @@ OPTIONS
 +
 If not specified, the contents are restored from `HEAD` if `--staged` is
 given, otherwise from the index.
++
+As a special case, you may use `"A...B"` as a shortcut for the
+merge base of `A` and `B` if there is exactly one merge base. You can
+leave out at most one of `A` and `B`, in which case it defaults to `HEAD`.
 
 -p::
 --patch::