diff --git a/Doc/c-api/frame.rst b/Doc/c-api/frame.rst
index fb17cf7f1da6b2..224c737d5c01c8 100644
--- a/Doc/c-api/frame.rst
+++ b/Doc/c-api/frame.rst
@@ -50,6 +50,8 @@ See also :ref:`Reflection <reflection>`.
 
    Return a :term:`strong reference`, or ``NULL`` if *frame* has no outer
    frame.
+   Does not raise an exception, even if the return value is ``NULL``.
+   Preserves exception that was set before the call.
 
    .. versionadded:: 3.9