diff --git a/arcade/types/box.py b/arcade/types/box.py
index 6a6559aad..ffdfd7bf2 100644
--- a/arcade/types/box.py
+++ b/arcade/types/box.py
@@ -291,7 +291,7 @@ def union(self, other: Box) -> Box:
         return LRBTNF(left, right, bottom, top, near, far)
 
     def __or__(self, other: Box) -> Box:
-        """Shorthand for :py:meth:`rect.union(other) <union>`.
+        """Shorthand for :py:meth:`Box.union(other) <union>`.
 
         Args:
             other: Another :py:class:`Box` instance.