diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt
index 311b33674eb..d5ff57ced1c 100644
--- a/Documentation/git-branch.txt
+++ b/Documentation/git-branch.txt
@@ -95,6 +95,10 @@ OPTIONS
 --force::
 	Reset <branchname> to <startpoint> if <branchname> exists
 	already. Without `-f` 'git branch' refuses to change an existing branch.
+	In combination with `-d` (or `--delete`), allow deleting the
+	branch irrespective of its merged status. In combination with
+	`-m` (or `--move`), allow renaming the branch even if the new
+	branch name already exists.
 
 -m::
 --move::