diff --git a/doc/whats-new.rst b/doc/whats-new.rst
index 0128e70caed..f499cbe3d21 100644
--- a/doc/whats-new.rst
+++ b/doc/whats-new.rst
@@ -34,7 +34,8 @@ Deprecations
 
 Bug fixes
 ~~~~~~~~~
-
+- Fix plot.line crash for data of shape ``(1, N)`` in _title_for_slice on format_item (:pull:`5948`).
+  By `Sebastian Weigand <https://github.com/s-weigand>`_.
 
 Documentation
 ~~~~~~~~~~~~~