diff --git a/pytato/array.py b/pytato/array.py
index 65f0630dd..68a06259f 100644
--- a/pytato/array.py
+++ b/pytato/array.py
@@ -150,8 +150,8 @@
 Please consider these undocumented and subject to change at any time.
 
 .. autofunction:: set_traceback_tag_enabled
-.. class:: _PytatoFrameSummary
-.. class:: _PytatoStackSummary
+.. class:: pytato.tags._PytatoFrameSummary
+.. class:: pytato.tags._PytatoStackSummary
 
 Internal stuff that is only here because the documentation tool wants it
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^