1 files changed, 3 insertions, 0 deletions

diff --git a/docs/manifest-format.md b/docs/manifest-format.md
index 7c0a7da9..6e671080 100644
--- a/docs/manifest-format.md
+++ b/docs/manifest-format.md
@@ -281,6 +281,9 @@ with the new settings needed.
 If not supplied the remote and project for this manifest will be used: `remote`
 cannot be supplied.
 
+Projects from a submanifest and its submanifests are added to the
+submanifest::path:<path_prefix> group.
+
 Attribute `manifest-name`: The manifest filename in the manifest project.  If
 not supplied, `default.xml` is used.