diff --git a/AUTHORS b/AUTHORS
index 2ac02e5fb..ef414e316 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -47,4 +47,5 @@ Contributors are:
 -Hugo van Kemenade
 -Hiroki Tokunaga <tokusan441 _at_ gmail.com>
 -Julien Mauroy <pro.julien.mauroy _at_ gmail.com>
+-Patrick Gerard
 Portions derived from other open source works and are clearly marked.
diff --git a/git/repo/base.py b/git/repo/base.py
index 5a85cc4e2..a1be5ff9a 100644
--- a/git/repo/base.py
+++ b/git/repo/base.py
@@ -858,6 +858,8 @@ def ignored(self, *paths: PathLike) -> List[str]:
     @property
     def active_branch(self) -> Head:
         """The name of the currently active branch.
+
+        :raises	TypeError: If HEAD is detached
         :return: Head to the active branch"""
         # reveal_type(self.head.reference)  # => Reference
         return self.head.reference