diff --git a/Documentation/config.txt b/Documentation/config.txt
index f61788668e..af7b693793 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -865,6 +865,7 @@ branch.<name>.rebase::
 	instead of merging the default branch from the default remote when
 	"git pull" is run. See "pull.rebase" for doing this in a non
 	branch-specific manner.
+	When the value is `interactive`, the rebase is run in interactive mode.
 +
 When preserve, also pass `--preserve-merges` along to 'git rebase'
 so that locally committed merge commits will not be flattened